“Bloody Thursday”: the police open fire on striking longshoremen in San Francisco.

In Rome, New York, construction on the Erie Canal begins.

Dow Jones & Company publishes its first stock average.

Bogdan III the One-Eyed becomes Voivode of Moldavia.

Lexell’s Comet is seen closer to the Earth than any other comet in recorded history, approaching to a distance of 0.0146 astronomical units (2,180,000 km;…