Otto I's coronation in St. Peter's Basilica reestablished a Western imperial title that had lapsed since the Carolingian line withered, forging an alliance between German kingship and the papacy that would define European politics for centuries. The Holy Roman Empire he founded persisted, in one form or another, until Napoleon dissolved it in 1806.

Filed just hours ahead of a rival inventor, Elisha Gray, Bell's patent for the telephone became one of the most lucrative and litigated documents in American history. Three days after receiving it, on March 10, Bell successfully transmitted the first intelligible sentence over wire to his assistant Thomas Watson: 'Mr. Watson, come here, I want you.'

Female textile and garment workers, many of them recent immigrants laboring in dangerous sweatshop conditions, marched through Manhattan demanding a ten-hour workday, better wages, and suffrage. The demonstration became one of the touchstone moments American socialists and suffragists later invoked when tracing the origins of March 8 as a day of working women's protest.

On what was March 8 by the Gregorian calendar (February 23 in Russia's Julian calendar), tens of thousands of women in Petrograd marched through the capital chanting for bread and peace. The demonstration snowballed within days into strikes that toppled Tsar Nicholas II, and the date was later adopted worldwide as International Women's Day.

The protocol signed in Paris ended seventy-five years of French colonial administration over Tunisia, a culmination of years of nationalist agitation led by the Neo Destour party. Habib Bourguiba, released from years of exile and imprisonment, became prime minister months later and then the country's first president when the monarchy was abolished in 1957.

The Boeing 777 lost contact with air traffic control roughly 40 minutes after takeoff, and despite one of the largest and most expensive multinational search efforts in aviation history, the wreckage was never recovered beyond a handful of debris pieces washed ashore in the western Indian Ocean. The disappearance remains aviation's most enduring unsolved mystery.