Denmark, 1733: 750,000 livres for an empty island
Denmark's flag arrived by contract. The Danish West India and Guinea Company already held St. Thomas and St. John, both small and mountainous, and in 1725 Frederik Moth, the governor on St. Thomas, urged the directors to consider buying Santa Cruz — flat, fertile and empty since the French left. On June 15, 1733, France and Denmark-Norway signed a treaty by which the company bought St. Croix for 750,000 livres. Louis XV ratified it on June 28 and took half the price in French coin at once, the rest within eighteen months. (Some summaries credit the sale to the French West India Company; it was the French crown that signed.)
Moth was named the first Danish governor of St. Croix on November 16, 1733, and on September 1, 1734, he established Christiansted and named it for the reigning king, Christian VI. From May 1735 the town was laid out on a grid, and the Building Code of 1747 dictated street widths, setbacks and materials, which is why the blocks still line up. Frederiksted was founded at the west end in 1751 (some sources say 1752), named for Frederik V, with Fort Frederik begun in 1752 and finished around 1760.
The company could not settle the island with Danes, so it did not try. It offered tax exemptions and cheap land, and the planters who came were mostly English-speaking, from the Leeward Islands and especially St. Kitts, with Dutch and French planters among them — which is why English, not Danish, became the language of the cane fields. The 1742 census counted 120 sugar plantations and 122 cotton plantations. In 1754 the bankrupt company handed all three islands to the crown; Frederik V took direct control, and Christiansted became the capital of the Danish West Indies, which it stayed until 1871.
Why the Danish flag came: sugar land for a company that had run out of it. Why it stayed 184 years: the sugar paid, and then the towns and the forts and the debts were there. What survives: nearly everything you will photograph — the two towns, the two forts, the street grid, the arcades, the estate names, the windmill ruins on almost every hill. Denmark is the flag you can still walk through.
Sugar, and the people forced to make it
The Danish flag was raised over a sugar factory, and the factory ran on enslaved Africans. In 1742 there were 1,906 enslaved people on St. Croix and 360 whites. By 1754 the enslaved numbered 7,566. At the peak of the plantation economy, in the mid-to-late 1700s, the enslaved population stood between 18,000 and 20,000 against 1,500 to 2,000 whites, and more than 58 percent of the island's land was under sugar cane. The Danish National Archives counts about 250 plantations in nine quarters — Company, King's, Queen's, Prince's, West End, Northside A and B, East End A and B.
Every one of those estates was worked by people bought on the West African coast — the "Guinea" in the company's name was the coast it traded from — shipped across the Atlantic and held for life with their children. Denmark is often described as the first European state to outlaw the slave trade, and that is true only narrowly: a 1792 decree ended Denmark's transatlantic trade, but it took effect only on January 1, 1803, and it freed nobody.
Slavery lasted 45 more years and did not end by decree. On July 3, 1848, some 8,000 enslaved people marched on Frederiksted behind the man remembered as General Buddhoe — recorded as Moses Gottlieb and as John Gottliff — and Governor-General Peter von Scholten, at Fort Frederik, declared "all unfree in the Danish West Indies are from today emancipated." That day has its own guide.
Freedom did not end the plantation. Emancipation came with labor rules that tied the freed to the estates on yearly contracts, and in October 1878 the Fireburn — a labor revolt led by four women laborers, remembered as the Queens — burned most of Frederiksted and around fifty plantations. The Frederiksted guide and the Estate Whim guide take up that story and the economy under it.
Read the Danish chapter with both facts in one hand: the towns are handsome, and they were paid for by people who had no say in the flag. The forts you will climb were built to guard the harbor and to keep order in a slave colony; Fort Christiansvaern spent most of its life as the colony's jail. None of this is hidden on St. Croix, and a visitor who wants the architecture without the history is missing what the architecture was for.

Britain, twice: 1801–02 and 1807–15
The British flag flew over St. Croix for about nine years in total, and it is the chapter the count leaves out. Both occupations were side effects of Denmark's position in the Napoleonic wars. In March 1801 a British fleet arrived at St. Thomas; Denmark-Norway accepted the Articles of Capitulation, and the British took the islands without a shot being fired. They handed them back in April 1802. In December 1807, with Denmark allied to France, a British fleet returned, took St. Thomas on December 22 and St. Croix on December 25 — again without resistance — and stayed until 1815, when the peace returned the islands to Denmark.
Why the British came: to keep Danish harbors and Danish sugar out of French hands while Denmark was on the wrong side of the war. Why they left: the wars ended and the treaties said so. Neither occupation changed the planters, the language or the labor system; many planters were English-speaking already.
What survives from the British years: nothing you can point to with confidence — no British fort, no British street name, no plaque we could verify. Fort Christiansvaern was there for both surrenders and fired at nobody. The occupations matter mostly as the start of Denmark's long doubt about the islands: the sugar economy was already heading into the decline — soil exhaustion, competition from European sugar beet, hurricanes, falling prices, debt — and within fifty years Copenhagen would be trying to sell.

The long Danish afternoon: decline, debt and three tries at a sale
The Danish flag flew longest, and for most of that time over a colony in slow decline. Emancipation in 1848 removed the forced labor the estates were built on; the labor rules that replaced it produced the Fireburn of 1878; and in 1871 the capital of the Danish West Indies moved from Christiansted back to Charlotte Amalie on St. Thomas, where it had been before 1754. Christiansted, seat of the whole colony for 117 years, became the second town of a second island.
The United States had wanted the islands for a long time. The Landmarks Society dates the first approach to 1865, when Washington sought them "for naval strategic advantage." On October 24, 1867, a treaty was signed to buy St. Thomas and St. John — not St. Croix — for $7.5 million in gold; the U.S. Senate never ratified it. On January 24, 1902, a second treaty was signed for all three islands at $5 million; it failed in the Danish legislature.
The third try was made under pressure. By 1916 the First World War was two years old, Germany was sinking ships with submarines, the Panama Canal was close by, and Washington feared that if Germany overran Denmark it would inherit three Caribbean harbors. Denmark had a colony that was an economic burden, and a use for $25 million. On August 4, 1916, at the Biltmore Hotel in New York, Secretary of State Robert Lansing and the Danish minister Constantin Brun signed the Treaty of the Danish West Indies; the U.S. Senate approved it on September 7.
Denmark then put the sale to its voters. In the referendum of December 14, 1916, 64.2 percent approved; the Danish parliament ratified on December 22, President Wilson on January 16, 1917, and ratifications were exchanged on January 17. The islanders were not asked officially; an unofficial vote in the islands ran 99.83 percent in favor. Why Denmark's flag went: sugar and money gone, a war coming, and a buyer at last willing to pay.
| Flag | Years | Why it came | Why it went | What to see today |
|---|---|---|---|---|
| Spain | 1493 claim, raids to 1650 | Columbus's claim and Puerto Rico's flank | Never settled it and let France have it in 1650 | Salt River Bay and the island's name |
| Netherlands | 1638–1645 (with the French) | Tobacco and cotton land | Killed off and driven out by the English in 1645 | The Fort Salé earthwork at Salt River, barely |
| England | 1631, then 1641–1650 | Tobacco planters from Barbados and the Leewards | Spanish raids of 1647 and 1650, then fever | Little on the ground, much in the later estate names |
| France | 1650–51 and 1665–1696 | To deny the island to Spain and England and to farm it | Mortality, losses and the War of the Grand Alliance | The name Sainte-Croix and perhaps La Grange |
| Knights of Malta | 1651–1665 | Bought St. Kitts and its dependencies from France | Sold to the French West India Company | The Maltese cross in island iconography |
| Denmark | 1733–1917 | Sugar land for the West India and Guinea Company | Sugar and money gone, a world war coming | Christiansted, Frederiksted, the forts, Whim, the estate names |
| Britain (occupier) | 1801–02 and 1807–15 | Napoleonic wars, Denmark allied to France | Peace returned the islands | Nothing you can point to |
| United States | 1917 to today | German submarines and the Panama Canal | Still here | Transfer Day, March 31, and the fort lawn in Christiansted |
The United States, 1917: $25 million in gold and a 48-ton warrant
Transfer Day was March 31, 1917, at 4 pm on St. Thomas and St. Croix at the same hour, and St. Croix held two ceremonies. In Christiansted, by the Landmarks Society's account, at 3:30 pm half a company of Danish gendarmes under Captain F. N. C. Fuglede marched from their barracks on Hospital Street to the wharf and lined up facing Fort Christiansvaern; opposite them stood U.S. Marines under First Lieutenant Edward A. Willing, driven over from Frederiksted by automobile because their ship could not cross the sandbar into Christiansted harbor. Government Secretary Will Jacobsen, the police master and the Colonial Council arrived before the Steeple clock struck four, and Jacobsen read the Royal Act.
Then Fuglede gave the order and the Dannebrog came down while the Christiansted Industrial Band played the Danish royal anthem. Marines and gendarmes exchanged places, and Willing raised the Stars and Stripes to "Hail Columbia." In Frederiksted the USS Olympia, under Captain Bion B. Bierer, had arrived at noon; as the steeple struck four, the Lutheran minister John Faber said a prayer for the old flag, a 21-gun salute preceded the lowering of the Dannebrog and another followed the raising of the American flag. That was the whole of it: one hour on a Saturday afternoon.
The money changed hands in Washington the same day, and not as gold. Secretary Lansing presented Constantin Brun with a warrant for $25 million; Treasury Secretary William McAdoo explained that a warrant was used "because the actual gold coin would weigh nearly forty eight tons." The price was about $740 million in 2025 dollars. It bought three islands, three harbors and a population that had not been consulted and did not become citizens that afternoon.
You will see April 1, 1917 in a few references. The ceremonies, the warrant and the public holiday are all March 31, and that is the date the Virgin Islands keep. Why the American flag came: a war Washington was about to enter, and harbors it did not want Germany to have. Why it stayed: it is still there.
“By Order of His Majesty the King of Denmark, Commodore Konow, Governor ad-interim of the Danish West Indies, delivers at this moment these islands to the representatives of the United States of America.”
The Royal Act, read at Christiansted by Government Secretary Will Jacobsen, March 31, 1917 (St. Croix Landmarks Society)
Flag seven, slowly: Navy rule, citizenship and the Organic Acts
The United States bought the islands for a war and governed them at first as if the war were the point. From 1917 the Virgin Islands were administered by the U.S. Navy, with naval officers as governors. Islanders were not citizens; they had traded Danish subjecthood for an undefined status, and it took a decade to define it. Congress granted citizenship on February 25, 1927, and the islands became, in the language of the law, an unincorporated territory.
Naval rule ended in 1931, when President Hoover moved the islands by executive order from the Navy Department to the Department of the Interior. On June 22, 1936, Congress passed the Organic Act of the Virgin Islands, the territory's first civil framework, and the Revised Organic Act of 1954 set up the present government with separate executive, legislative and judicial branches. Governors were appointed from Washington until the first popularly elected governor, Melvin H. Evans, took office in 1970. That is the arc of the seventh flag: purchase 1917, citizenship 1927, civil government 1936, self-government 1954, an elected governor 1970.
Those dates are the ones the island marks. Transfer Day, March 31, is a territorial public holiday, and the 2017 centennial was observed in Christiansted with a military parade, a ceremony on the lawn of the National Historic Site, a naturalization ceremony, and an address by Denmark's prime minister, Lars Løkke Rasmussen, who acknowledged Denmark's history with slavery. Emancipation Day is July 3. Neither is a tourist event; both are the island talking to itself about the flags.
One more thing about the seventh flag: it kept the Danish town. What is now Christiansted National Historic Site was established in 1952 "through the initiative of concerned local citizens," and that is why the fort, the warehouse, the Steeple Building, the Custom House and the Scale House are maintained rather than demolished. Denmark built them; the people of Christiansted, under the American flag, are why they are still there.
A seven-flags day, north shore to west end
- Start at Salt River Bay for 1493 and the 1600s — the beach at Columbus's Landing and the low earthwork of Fort Salé, open sunrise to sunset, free.
- Drive into Christiansted and give the National Historic Site two hours — Fort Christiansvaern, the Company Warehouse, the Steeple Building, the Scale House and the Custom House, all Danish.
- Walk King, Company and Strand Streets and stop at Government House and Apothecary Hall — the everyday Denmark of the 1700s and 1800s.
- Take Centerline Road west and read the estate signs as you go — English, French, Danish and Dutch names on one road.
- Stop at Estate Whim for the sugar economy told whole, then finish at Fort Frederik in Frederiksted, where emancipation was proclaimed in 1848 and the island's second Transfer Day ceremony was held in 1917.
- Drive back east — about 45 minutes from Frederiksted to the East End — and read the Transfer Day account over dinner.
What survives on the ground: Christiansted
Denmark is the flag you can walk through, and Christiansted is where you do it. The National Park Service keeps five buildings on the seven-acre waterfront site and dates them plainly: Fort Christiansvaern (begun 1738, finished 1749), the Danish West India and Guinea Company Warehouse (1749), the Steeple Building (1753, built as the Danish Lutheran church), the Danish Custom House (1844) and the Scale House (1856). Read them as one machine — fort, warehouse and wharf, customs house, scale house, church — for the sugar and rum going out and the enslaved people and goods coming in.
The fort is where the Danish flag came down in 1917, and it is the one building you can walk top to bottom: ramparts, cannon, courtyard, cells. It served as the colony's jail for most of its life and, from 1878, as police headquarters and courts, which is why it survived. As of 2026 it is open daily 8:30 am to 4:30 pm, closed Thanksgiving and Christmas, with a $10 adult ticket good for three days and free entry under 16 — check the NPS page, because hours and fees change.
Then walk the grid. The streets still carry the names the Danes gave them, in English: King Street and Company Street parallel to the water; Queen Cross, King Cross, Church and Hospital Streets running down to the harbor; Strand Street along the waterfront at the western end. The "Company" is the West India and Guinea Company; Hospital Street is the one the gendarmes marched down on Transfer Day. Government House on King Street was joined into one building in 1830 by von Scholten, who would proclaim emancipation eighteen years later. Apothecary Hall, run by the Landmarks Society, is a Danish colonial pharmacy established in 1820, opened as a museum in 1987.
The arcaded sidewalks, the yellow of the fort, the 1747 building code — all of that is Denmark, and all of it is in the Christiansted town guide. Alexander Hamilton clerked at King and King's Cross Streets as a teenager and left for New York in 1772, and his mother was jailed in the fort in 1750; that thread is in the Hamilton guide. On the wharf facing the fort you are standing where Fuglede's gendarmes lined up at 3:30 on March 31, 1917.

What survives on the ground: Frederiksted, Whim and the estate names
Frederiksted is the second Danish town, and its history sits in one building. Fort Frederik, on the waterfront, was begun in 1752, finished around 1760 and named for Frederik V; on July 3, 1848, some 8,000 people surrounded it and von Scholten proclaimed emancipation there; and on March 31, 1917, the town held its own Transfer Day ceremony. The fort is a museum today — as of late 2025, open weekdays 8:30 to 4 and Saturday afternoons 1 to 4, but confirm before you cross the island. The town around it was rebuilt after the Fireburn of 1878, which is why Frederiksted's architecture is Victorian where Christiansted's is a century older.
Estate Whim, on Centerline Road near Frederiksted, is the Landmarks Society's twelve-acre plantation museum — restored great house, windmill and factory complex, and the "My Granny House" exhibit — and it is where the economy every flag after 1733 depended on is kept whole. It has its own guide, linked above; go before the forts if you can, because Whim explains what the forts were guarding.
The subtlest Danish survival is the one you drive past without noticing: the estate names. The Danish National Archives' list, compiled by the historian George Tyson from the land-tax records and P. L. Oxholm's cadastral map of 1794 (printed 1799), runs to about 250 estates in nine quarters, and those names still label the island's map and its addresses. Naming became common in the 1760s and the names entered the tax rolls in 1803.
Read a stretch of them and the whole planter population appears: mostly English — Whim, Judith's Fancy, William's Delight, Work and Rest, Wheel of Fortune, Hard Labour, Humbug, Jealousy, Little Profit, Barren Spot; a French layer — La Grange, La Vallée, La Reine, La Grande Princesse, Bonne Esperance, Mon Bijou, Belvedere, Sans Souci; a Dutch handful — Rust op Twist, Drie Kloven, Eindracht; and roughly a dozen Danish ones, by the late historian Arnold Highfield's count — Fredensborg, Hogensborg, Sorgenfri, Bulowsminde, Hafensight, Frederikshaab. That is the honest census of who owned Danish St. Croix: land named in four languages under a fifth flag.
It is also the map of the villa's neighborhood. The East End Lit. B quarter on the Danish rolls takes in Teague Bay, Grapetree Bay, Cotton Valley, Turner Hole, Solitude and Jacks and Isaacs Bay, and Buck Island was an estate of its own, number 42 — which is why the road signs on the way home from Christiansted read like a page from the Danish tax rolls. They are one.

Myths to avoid
The tidy story sands off untidy facts. A few worth keeping in view. "Seven nations ruled St. Croix." Six did, plus a religious order, plus a seventh nation that occupied it twice and is not counted. "Columbus discovered St. Croix." He anchored off it for a day, sent a boat ashore, fought the people who lived there and left; the island had been inhabited for well over a thousand years, and it was not discovered so much as claimed.
"Denmark abolished slavery in 1792." Denmark decreed an end to its transatlantic slave trade in 1792, effective 1803; it freed no one, and slavery on St. Croix ended in 1848 only because 8,000 enslaved people made it end. "Frederiksted and Christiansted were founded together." Christiansted dates to 1734, Frederiksted to 1751 or 1752, a generation later. "St. Croix was a Danish-speaking island." Danish was the language of the administration and the church; the planters were mostly English-speaking, and English is what the island spoke and speaks — which is why the estate names and the everyday street names are what they are.
On the American chapter: "The U.S. paid $25 million in gold." It paid a $25 million warrant, because the coin would have weighed nearly forty-eight tons — "in gold" is the treaty's standard of payment, not a shipment. "Transfer Day was April 1." March 31, 1917, at 4 pm; April 1 shows up in a few references, but the ceremonies, the warrant and the holiday are all March 31. "Virgin Islanders became citizens in 1917." February 25, 1927, ten years later, with the U.S. Navy as their government in between.
Two more. "The Danish street names." Christiansted's streets have Danish originals, but English is what is on the signs and in everyone's mouth. "The Transfer Day monument." We looked, and we could not verify a dedicated one on St. Croix. The commemoration lives at the fort and its lawn in Christiansted, where the 2017 centennial ceremony was held, and in some years there is no official ceremony at all.













