1562 Kissing in public was banned in Naples, contravention being punishable by death

Wow! That's harsh.

1841 The US Supreme Court ruled on the Amistad Mutiny, ruling, with only one dissent, that the African slaves who seized control of the Amistad slave ship had been illegally forced into slavery, and thus were free under US law. In 1807, the US Congress joined with Great Britain in abolishing the African slave trade, although the trading of slaves within the US was not prohibited. Despite the international ban on the import of African slaves, Spain and Portugal continued to transport and accept captive Africans to their American colonies until the 1860s

I didn't know that. Interesting.

1858 In the US, Albert Potts of Philadelphia patented the street mailbox

The only ones I see any more are right outside the Post Office for drive-up mail deposit.