Flags of the United States

50-star flag

Who & why: Hawaii is admitted as the 50th state on 21 August 1959; per the Flag Act of 1818's standing rule that a new star takes effect the 4th of July following a state's admission, the 50-star flag becomes official on 4 July 1960 — now the longest-serving version of the flag in the nation's history by a wide margin.

What it represents: 50 stars in a staggered 9-row pattern, 13 alternating red-and-white stripes for the original colonies — the design most familiar today.

49-star flag

Who & why: Alaska is admitted as the 49th state on 3 January 1959; the new flag becomes official that 4 July and is retired exactly one year later when Hawaii's star is added — the shortest official tenure of any version of the flag.

What it represents: 49 stars added in a new staggered arrangement, 13 stripes unchanged.

48-star flag

Who & why: Arizona's February 1912 admission, the last of the contiguous 48 states, completes the star count. President Taft's 1912 executive order also fixes, for the first time, the flag's precise star arrangement and proportions by law — the flag flown through both World Wars and the Great Depression.

What it represents: 48 stars in a rigid 6-by-8 grid, 13 stripes; the first version with legally standardized star placement.

Post-war expansion, 36 to 45 stars

Who & why: Reconstruction (1865–77) follows the Civil War, restoring the former Confederate states to the union amid the fraught, incomplete work of extending citizenship and voting rights to formerly enslaved Americans. Westward settlement drives eight new states into the union across this period — Nebraska, Colorado, and the six states admitted in 1889–90 alone — each adding its own star the following 4th of July.

What it represents: a fast-changing star count (36, 37, 38, then a jump to 43, then 44, then 45) shown here as one bridging entry, since no single arrangement lasted more than a few years across this span.

Civil War, Union flag

Who & why: the Civil War (1861–65) is fought centrally over slavery, an institution that had coexisted with the nation's founding ideals for its first 89 years. Eleven Southern states secede to form the Confederate States of America; the Union government never recognizes the secession as legitimate, and deliberately keeps every seceded state's star on its own flag throughout the war. The war ends with roughly 620,000 dead and, with the 13th Amendment, the abolition of slavery.

What it represents: 34 stars at the war's outbreak, rising to 35 with West Virginia's 1863 admission (itself formed by counties that broke from seceded Virginia) — the Union's refusal to remove a single star was itself a political statement.

Westward expansion, 20 to 33 stars

Who & why: the Flag Act of 1818, prompted by the awkwardness of adding a stripe for every new state, permanently fixes the stripe count at 13 (for the original colonies) and provides that only a star is added, on the following 4th of July, for each new state. Thirteen states join the union across this period, from Mississippi (1818) to Kansas (1861), doubling the country's size while slavery remains legal and expanding in the South throughout.

What it represents: a fast-changing star count shown here as one honest bridging entry, since no single arrangement lasted more than a few years; official star layout is not standardized until 1912, so period flags show real variation.

15-star flag

Who & why: Vermont (1791) and Kentucky (1792) join the union, and Congress adds both a star and a stripe for each in 1795 — the only version of the flag ever to carry more than 13 stripes. This is the flag Francis Scott Key sees flying over Fort McHenry in 1814, inspiring "The Star-Spangled Banner."

What it represents: 15 stars and 15 alternating red-and-white stripes, before Congress realizes a stripe per state is unsustainable and reverses course in 1818.

13-star flag

Who & why: the Second Continental Congress's Flag Act of 14 June 1777 (still marked as Flag Day) establishes the first official Stars and Stripes, following the July 1776 Declaration of Independence and the Revolutionary War (1775–83) that secures it. No single star arrangement is specified by law — circular, staggered-row, and grid patterns all appear on period flags.

What it represents: 13 stars for the original states, 13 alternating red-and-white stripes — a founding that coexisted with chattel slavery, legal in every one of the original 13 states at independence and not fully abolished nationwide for another 88 years.

British Thirteen Colonies

Who & why: English (from 1707, British) colonization along the Atlantic seaboard begins with Jamestown in 1607, eventually forming the Thirteen Colonies whose growing resentment of British taxation and rule without representation erupts into the Revolutionary War in 1775. Slavery is present and legal in every colony from the colonial era onward.

What it represents: British colonial flags (the Union Jack and its ensign variants) fly for most of this period; by the Revolution's opening months in late 1775, colonial forces adopt the Grand Union Flag (the Continental Colors) — British Union canton with 13 stripes — as a transitional banner asserting American unity while formal independence was still being debated.

Indigenous Nations of Eastern North America

Who & why: the archaeologically documented Clovis culture (c. 11,000 BCE) represents some of the earliest well-attested human presence in North America, followed over millennia by the Archaic, Woodland, and Mississippian periods. The Mississippian culture's Cahokia, near present-day St. Louis, grows by around 1050–1350 CE into one of pre-Columbian North America's largest cities, with the continent's largest earthen mound. By the time English colonists reach Virginia in 1607, the coastal Algonquian-speaking peoples are organized into the Powhatan Confederacy under Wahunsenacawh, while the Haudenosaunee (Iroquois) Confederacy governs much of the interior Northeast under a founding oral constitution, the Great Law of Peace, whose deliberative structure several of the American Constitutional Convention's own delegates later cited as an influence in the 1780s.

What it represents: no flag in any modern sense existed across this span; nations of this era used wampum belts, painted hides, clan totems, and earthwork monuments rather than woven national banners. Shown here honestly blank rather than invented.

World context: the Clovis culture's distinctive stone tool tradition (c. 11,000 BCE) is contemporaneous with the last Ice Age megafauna and predates Egypt's pyramids by many millennia; Cahokia's 1050–1350 CE peak population is estimated to have rivaled contemporary London's; and the Haudenosaunee Great Law of Peace, an oral constitution establishing a confederated council of nations, was in place centuries before the 1787 Philadelphia convention that drafted the U.S. Constitution.