1. On August 6, 1920, Tennessee became the 36th state to ratify the 19th Amendment to the US Constitution, granting women the right to vote. The state played a crucial role in the suffrage movement, and its decision to ratify the amendment was a significant moment in American history.

2. On August 6, 1945, the US dropped an atomic bomb on the city of Hiroshima in Japan, marking the first use of atomic weapons in warfare. The bomb, named "Little Boy," was dropped by the bomber aircraft Enola Gay and resulted in the deaths of around 140,000 people.

3. On August 6, 1861, the Battle of Fort Henry took place during the American Civil War. Union forces, led by General Ulysses S. Grant, attacked the Confederate-held fort on the Tennessee River, resulting in a decisive Union victory and paving the way for subsequent Union offensives in the region.

4. August 6 is celebrated as "Wigwam Day" in Tennessee, commemorating the meeting of the Democratic National Convention in Memphis on this day in 1868. The convention was held in a temporary structure called a "wigwam" and resulted in the nomination of Horatio Seymour for president.

5. On August 6, 1965, the Voting Rights Act was signed into law by President Lyndon B. Johnson, prohibiting racial discrimination in voting and paving the way for increased political participation by African Americans. The act was a major victory for the civil rights movement and continues to shape American democracy today.