Template:Selected anniversaries/November 30
3340 BC: Earliest recorded solar eclipse.
1740: Mathematician, astronomer, and cartographer Johann Gabriel Doppelmayr publishes Atlas Coelestis in quo Algorithmus Gnomonis, his landmark study of Gnomon algorithm functions.
1827: Physicist, musician, and academic Ernst Chladni dies. He has been called both the father of acoustics and the father of meteoritics.
1829: Poet and wizard Jan Kochanowski adapts Nebra sky disk for use in detecting and preventing crimes against mathematical constants.
1835: Writer, entrepreneur, publisher and lecturer Mark Twain born.
1888: Electronics researcher Ralph Hartley born. He will invent the Hartley oscillator and the Hartley transform, and contribute to the foundations of information theory.
1937: Film director and producer Ridley Scott born.
