WHAT ALL HAPPENED JANUARY TO JUNE 1864
Find out what all happened January to June 1864

American Civil War: The Fort Pillow massacre: Confederate forces kill most of the African American soldiers that surrendered at Fort Pillow, Tennessee. (12. April 1864)

American Civil War: Battle of Cold Harbor – Union forces attack Confederate troops in Hanover County, Virginia. (3. 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: Battle of Olustee occurs – the largest battle fought in Florida during the war. (20. February 1864)

The U.S. Congress passes the Coinage Act of 1864 that mandates that the inscription In God We Trust be placed on all coins minted as United States currency. (22. April 1864)

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

New Zealand Land Wars: The Tauranga Campaign ends. (21. June 1864)

The Tauranga Campaign begins during the Maori Wars. (21. January 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: 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: The Battle of Marks' Mills. (25. April 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)

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

The Great Sheffield Flood kills 238 people in Sheffield, England. (11. March 1864)

The world's oldest surviving clipper ship, the City of Adelaide was launched by William Pile, Hay and Co. in Sunderland, England, for transporting passengers and goods between Britain and Australia. (7. May 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  H. L. Hunley becomes the first submarine to engage and sink a warship, the USS Housatonic. (17. February 1864)

American Civil War: The Battle of Plymouth begins – Confederate forces attack Plymouth, North Carolina. (17. April 1864)

American Civil War: The first Northern prisoners arrive at the Confederate prison at Andersonville, Georgia. (27. February 1864)

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