October 18

October 18 is the 292nd day of the year, and the American record for it runs from 1775 to 2019 — a span of 244 years. The entry that anchors it: American Revolutionary War, 1775.

The earliest entries here predate the republic entirely. In 1775, American Revolutionary War — in an act of retaliation against ports that supported Patriot activities in the early stages of the war, the Royal Navy destroyed what is now Portland, Maine.

The revolutionary generation left its own mark on the date. In 1779, American Revolutionary War — the Franco-American Siege of Savannah is lifted.

Reconstruction and the years that followed added their own entries. In 1867, United States takes possession of Alaska after purchasing it from Russia for $7.2 million. Celebrated annually in the state as Alaska Day. Then, in 1898, the United States takes possession of Puerto Rico from Spain.

The early twentieth century brought industry, air travel and war to the date. In 1945, the USSR's nuclear program receives plans for the United States plutonium bomb from Klaus Fuchs at the Los Alamos National Laboratory.

After 1945 the date reflects a country operating at global scale. In 1979, the Federal Communications Commission (FCC) begins allowing people to have home satellite earth stations without a federal government license.

The most recent entries fall within living memory. In 1991, the Supreme Council of Azerbaijan adopts a declaration of independence from the Soviet Union. Then, in 2019, NASA Astronauts Jessica Meir and Christina Koch take part in the first all-female spacewalk when they venture out of the International Space Station to replace a power controller.

The date is also a birthday. Among the Americans born on October 18: Edward Winslow (1595), American Pilgrim leader; Frederick August Otto Schwarz (1836), American businessman, founded FAO Schwarz; Logan Pearsall Smith (1865), American-English author and critic; James Truslow Adams (1878), American historian and author; and H. L. Davis (1894), American author and poet.

October 18 is also a date of endings. Among the Americans who died on it: Francis Preston Blair (1876), American journalist; Antonio Meucci (1889), Italian-American engineer; William W. Chapman (1892), American lawyer and politician; and Thomas Edison (1931), American engineer and businessman, invented the phonograph.

The date carries formal observance as well — Alaska Day (Alaska, United States). The record for October 18 runs 244 years deep across 8 entries. Read in sequence, the date stops being a coincidence and starts being a through-line.