A steamboat patent was granted to the American engineer and inventor Robert Fulton.
Source
Argentina canonized its first female saint, Saint María Antonia de Paz y Figueroa.
Margaret Thatcher became the leader of the British Conservative Party.
Koalas were listed as endangered for the first time in Australian history.
The Armenian-Turkish land border opened for the first time in 35 years.
The comic book 'Archie' was first published.
