12 September 2025: This day in history
1624: The first submarine is publicly tested in London on the Thames for King James I 1758: French astronomer Charles Messier mistakes the Crab Nebula for a comet while searching for Halley’s Comet, leading him to begin his Messier Catalogue 1909: World’s first patent for synthetic rubber granted to German chemist Fritz Hofmann 1940: Four […]

















