1873: the 287th prime number, and has a sine of .57350535004

1872: Yellowstone becomes the US's first national park

1*8=7+1

1870 is a 1972 drama film, set in Ancient Rome, directed by Alfredo Giannetti and starring Anna Magnani, Marcello Mastroianni, and Osvaldo Ruggieri.

1869- Trans-Continental Railroad was completed in the United States

1868-start of the boshin war

[quote=DiplomacyandWarfare post_id=402613 time=1715518891 user_id=26768]
1866 - nothing interesting
[/quote]

1866 nothing interesting? I feel strongly encouraged to fill this lack of knowledge.
1866 was year of the battle Königgrätz, a decisive win of the Prussian army over the Austrian army, that shifting the power in Germany from the more diplomatic Austrians to the warmongering Prussians and thus had global long run consequences. This resulted in the „lesser German solution“ with Austria leaving the German Empire forming Austro-Hungarian Empire in the Austro-Hungarian Compromise of [b]1867[/b]

1866 - nothing interesting

1865 - The American Civil War ends, with a Union victory. The confederacy surrenders at Appomattox, and within the year slavery is officially outlawed throughout the entire United States.

Glad to see this is still going
1864
I'll do something different since there's already been some Civil War stuff! The Third Battle of Nanking a crazy end to a crazy war the Taiping Rebellion, aka that war the guy said he was Jesus' brother and one of the deadliest in history.

1863: the emancipation proclamation is signed

1862
Battle of Antietam happened in this year. Also, a pretty fire number in general.

1861

1860=1859+0.999999...

1859 = 1858+1

1858, a sequence of notes playable on the valveless bugle, and other non valved brass instruments. In the key of C, these notes would be C4-C5-G4-C5, with 8 indicating the octave of a chord, and 5 the fifth.

1857 Elgar born

1856 The Treaty of Paris ended the Crimean War. Peace would last for two decades before Russia and the Ottomans went to another war.

1855 - November 21 – Large-scale Bleeding Kansas violence begins, with events leading to "war" between antislavery and proslavery forces.

In 1854, the famed Charge of the Light Brigade, immortalized by the poem of the same name written by Lord Alfred Tennyson, occurred during the Crimean war, due to a lack of communication between commanders.