◆ On this day

September 16

3 sourced moments from September 16 in history: The Mayflower departed Plymouth for America (1620); Mexico's war of independence began with the Grito de Dolores (1810); and Nations signed the Montreal Protocol to save the ozone layer (1987).

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3 things happened on September 16

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1987 Earth & Climate · Weather & Climate

Nations signed the Montreal Protocol to save the ozone layer

The world agreed to phase out the chemicals eating its ultraviolet shield, in the rarest of things: a treaty that worked.

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1810 History · Modern

Mexico's war of independence began with the Grito de Dolores

Before dawn on September 16, 1810, a small-town priest rang his church bell and called Mexico to revolt against three centuries of Spanish rule.

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1620 History · Modern

The Mayflower departed Plymouth for America

After two false starts and a leaky companion ship, a single vessel finally set out across the Atlantic.

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