WHAT HAPPENED IN 1864.
Look what happened the 1864.

Second War of Schleswig: The Danish navy defeats the Austrian and Prussian fleets in the Battle of Heligoland. (9. May 1864)

American Civil War: Colonel Emory Upton leads a 10-regiment "Attack-in-depth" assault against the Confederate works at The Battle of Spotsylvania, which, though ultimately unsuccessful, would provide the idea for the massive assault against the Bloody Angle on May 12. Upton is slightly wounded but is immediately promoted to Brigadier general. (10. May 1864)

American Civil War: the Battle of Spotsylvania Court House: thousands of Union and Confederate soldiers die in "the Bloody Angle". (12. May 1864)

American Civil War: Battle of Resaca – the battle begins with Union General Sherman fighting toward Atlanta, Georgia. (13. May 1864)

American Civil War: Battle of Resaca, Georgia ends. (15. May 1864)

American Civil War: Battle of New Market, Virginia – students from the Virginia Military Institute fight alongside the Confederate Army to force Union General Franz Sigel out of the Shenandoah Valley. (15. May 1864)

American Civil War: the Battle of Spotsylvania Court House ends. (19. May 1864)

American Civil War: Battle of Ware Bottom Church – in the Virginia Bermuda Hundred Campaign, 10,000 troops fight in this Confederate victory. (20. May 1864)

Russia declares an end to the Russian-Circassian War and many Circassians are forced into exile. The day is designated the Circassian Day of Mourning. (21. May 1864)

American Civil War: After ten weeks, the Union Army's Red River Campaign ends with the Union unable to achieve any of its objectives. (22. May 1864)

Montana is organized as a United States territory. (26. May 1864)

Emperor Maximilian I of Mexico arrives in Mexico for the first time. (29. May 1864)

American Civil War Overland Campaign: Battle of Cold Harbor – The Army of Northern Virginia under Robert E. Lee engages the Army of the Potomac under Ulysses S. Grant and George Meade. (31. May 1864)

American Civil War: Battle of Cold Harbor – Union forces attack Confederate troops in Hanover County, Virginia. (3. June 1864)

American Civil War: Battle of Piedmont: Union forces under General David Hunter defeat a Confederate army at Piedmont, Virginia, taking nearly 1,000 prisoners. (5. June 1864)

American Civil War: Battle of Brice's Crossroads - Confederate troops under Nathan Bedford Forrest defeat a much larger Union force led by General Samuel D. Sturgis in Mississippi. (10. June 1864)

American Civil War, Overland Campaign: Battle of Cold Harbor – Ulysses S. Grant gives the Confederate forces under Robert E. Lee a victory when he pulls his Union troops from their positions at Cold Harbor, Virginia and moves south. (12. June 1864)

American Civil War: The Second Battle of Petersburg begins. (15. June 1864)

Arlington National Cemetery is established when 200 acres (0.81 km2) around Arlington Mansion (formerly owned by Confederate General Robert E. Lee) are officially set aside as a military cemetery by U.S. Secretary of War Edwin M. Stanton. (15. June 1864)

American Civil War: The Battle of Jerusalem Plank Road begins. (21. June 1864)