June 10 in History

Emperor Tenji of Japan established the Rokoku water clock at the Omi Palace in Otsu on June 10, 671 AD, standardizing timekeeping for the imperial court. The water clock measured time by the steady flow of water between calibrated vessels, providing consistent readings regardless of cloud cover, weather, or season, advantages over the sundials previously used. Tenji's clock was part of his broader modernization of Japanese government along Chinese Tang Dynasty lines, including land reform, a new tax system, and a census. June 10 is still celebrated in Japan as "Time Day" (Toki no Kinenbi), established in 1920 to encourage punctuality. The original clock mechanism has not survived, but reconstructions based on Tang Chinese designs suggest it was a sophisticated multi-vessel system with float-operated indicators.

Bridget Bishop was the first person executed during the Salem witch trials, hanged on June 10, 1692, at Gallows Hill in Salem, Massachusetts. Bishop was an easy target: she owned a tavern, dressed flamboyantly, had been previously accused of witchcraft, and was generally disliked by her Puritan neighbors. The Salem trials ultimately led to the execution of 20 people (14 women and 6 men, including 19 by hanging and one by pressing with heavy stones) and the imprisonment of approximately 200. The hysteria was driven by "spectral evidence," testimony that the accused's spirit had appeared to the witness in a dream. Governor William Phips ended the trials in October 1692 after his own wife was accused. The trials became the defining cautionary tale about mass hysteria and the dangers of unchecked judicial power.

Dr. Robert Smith took his last drink on June 10, 1935, the date recognized as the founding of Alcoholics Anonymous. Smith, a surgeon in Akron, Ohio, had been introduced to Bill Wilson, a New York stockbroker, by a mutual friend. Wilson had achieved sobriety through a spiritual experience and a self-help approach that emphasized one alcoholic helping another. Their partnership produced the Twelve Steps, first published in the book Alcoholics Anonymous (known as "The Big Book") in 1939. The program's core innovation was peer support: recovering alcoholics helping active alcoholics, with anonymity protecting both from social stigma. AA now has over two million members in 180 countries. The twelve-step model has been adapted for dozens of other conditions, from narcotics addiction to gambling to overeating.

Nazi forces destroyed the Czech village of Lidice on June 10, 1942, in retaliation for the assassination of Reinhard Heydrich. SS troops shot all 173 men over age 15 against the wall of a farm building. Women were sent to Ravensbruck concentration camp; children were screened for "Aryan" features, with a handful adopted by German families and the remaining 82 children gassed at Chelmno. The village was burned, dynamited, and bulldozed; even the cemetery was dug up. The name was erased from all German maps. Rather than terrorizing the population into submission, the destruction of Lidice became a global symbol of Nazi brutality. Communities around the world renamed streets and towns "Lidice" in solidarity. The village was rebuilt after the war and a memorial now stands on the original site.

The merger of Canada's largest Protestant denominations on June 10, 1925, created the United Church of Canada from the union of Methodists, Congregationalists, and a majority of Presbyterians. The ceremony at Mutual Street Arena in Toronto brought together nearly one million members under one denomination. A significant minority of Presbyterians refused to join and continued as the Presbyterian Church in Canada. The United Church became the largest Protestant denomination in Canada and one of the most theologically progressive, ordaining women in 1936 and openly gay and lesbian ministers in 1988. The church played a significant role in Canadian social movements, advocating for universal healthcare, workers' rights, and reconciliation with Indigenous peoples, while also confronting its complicity in the residential school system.

A gunman opened fire at a secondary school in the Andritz district of Graz, Austria, on June 10, 2025, killing ten students and staff and wounding eleven others before taking his own life. The attack was the deadliest school shooting in Austrian history and one of the worst in Europe. Austria's firearms regulations, among the strictest in Europe, came under immediate scrutiny as investigators examined how the shooter obtained his weapons. The tragedy prompted vigils across the country and reignited continent-wide debate over school security measures, mental health screening for gun purchasers, and the adequacy of threat assessment protocols in educational institutions.

Alexander Bethune served as Vancouver's 12th mayor during World War I, overseeing a city whose population had tripled in a decade and whose finances were strained by war. He'd built his reputation in real estate and civic administration. His term ended in 1916 without major scandal — in a city prone to them — and he remained a figure in BC business circles until his death in 1947.