Detroit
French settlement

On July 24, 1701, the French explorer Antoine de la Mothe Cadillac, with his lieutenant Alphonse de Tonty and more than a hundred other settlers, began constructing a small fort on the north bank of the Detroit River. Cadillac named the settlement Fort Pontchartrain du Détroit, after Louis Phélypeaux, comte de Pontchartrain, Secretary of State of the Navy under Louis XIV. Sainte-Anne-de-Détroit was founded on July 26 and is the second-oldest continuously operating Roman Catholic parish in the United States. France offered free land to colonists to attract families to Detroit; when it reached a population of 800 in 1765, it became the largest European settlement between Montreal and New Orleans, both also French settlements, in the former colonies of New France and La Louisiane, respectively.

By 1773, after the addition of Anglo-American settlers, the population of Detroit was 1,400. By 1778, its population reached 2,144 and it was the third-largest city in what was known as the Province of Quebec since the British takeover of French colonies following their victory in the Seven Years' War.

The region's economy was based on the lucrative fur trade, in which numerous Native American people had important roles as trappers and traders. Today the flag of Detroit reflects its French colonial heritage. Descendants of the earliest French and French-Canadian settlers formed a cohesive community, who gradually were superseded as the dominant population after more Anglo-American settlers arrived in the early 19th century with American westward migration. Living along the shores of Lake St. Clair and south to Monroe and downriver suburbs, the ethnic French Canadians of Detroit, also known as Muskrat French in reference to the fur trade, remain a subculture in the region in the 21st century.

During the French and Indian War (1754–63)—the North American front of the Seven Years' War between Britain and France—British troops gained control of the settlement in 1760 and shortened its name to Detroit. Several regional Native American tribes, such as the Potowatomi, Ojibwe and Huron, launched Pontiac's War in 1763 and laid siege to Fort Detroit but failed to capture it. In defeat, France ceded its territory in North America east of the Mississippi to Britain following the war.

Following the American Revolutionary War and the establishment of the United States as an independent country, Britain ceded Detroit along with other territories in the area under the Jay Treaty which established the northern border with its colony of Canada. The Great Fire of 1805 destroyed most of the Detroit settlement, which had primarily buildings made of wood. One stone fort, a river warehouse, and brick chimneys of former wooden homes were the sole structures to survive. Of the 600 Detroit residents in this area, none died in the fire. The legacy of the fire of 1805 lives on in many aspects of modern Detroit heritage. The cities motto, "Speramus Meliora; Resurget Cineribus" was coined by Father Gabriel Richard as he looked out at the ruins of the city in the fire's aftermath. The city seal, designed by J.O. Lewis in 1827, directly depicts the Great Fire of 1805. Two women stand in the foreground while on the left, the city burns in the background and a woman weeps over the destruction. The woman on the right consoles her by gesturing to a new city that will rise in its place. The city seal also forms the center of the flag of the city.
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