This Day in History Class

On this day in 1927, the silent science-fiction film "Metropolis" premiered in Berlin.

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On this day in 1992, the discovery of two exoplanets was announced in the journal Nature.

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On this day in 1811, the German Coast Uprising, a slave revolt in modern-day Louisiana, began. 

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On this day in 1979, Vietnamese troops occupied Phnom Penh and overthrew Pol Pot's regime. 

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On this day in 1912, German geophysicist and meteorologist Alfred Wegener first presented his hypothesis on continental drift in a public lecture.

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On this day in 1893, blues and folk musician Elizabeth Cotten was born near Chapel Hill, North Carolina.

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On this day in 1809, French educator Louis Braille, namesake of the Braille reading and writing system, was born. 

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On this day in 1848, Black American merchant Joseph Jenkins Roberts was sworn in as the first president of Liberia. 

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On this day in 1942, thirty-three members of a Nazi spy ring headed by Frederick Joubert Duquesne were sentenced to serve time in prison.

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On this day in 1818, Mary Shelley's debut novel, "Frankenstein; or, The Modern Prometheus," was first published. 

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