July 1, 1862 - President Abraham Lincoln signed the first income tax bill, levying a 3% income tax on annual incomes of $600-$10,000 and a 5% tax on incomes over $10,000. Also on this day, the Bureau of Internal Revenue was established by an Act of Congress.
July 5, 1775- The Continental Congress adopted the Olive Branch Petition expressing hope for reconciliation with Britain. However, King George III refused even to look at the petition and instead issued a proclamation declaring the colonists to be in a state of open rebellion.
July 6, 1885 - Louis Pasteur gave the first successful anti-rabies inoculation to a boy who had been bitten by an infected dog.
July 16, 1769 - San Diego was founded as the mission San Diego de Alcala by Father Junipero Serra.
July 18, 1947 - President Harry Truman signed an Executive Order determining the line of succession if the president becomes incapacitated or dies in office. Following the vice president, the speaker of the house and president of the Senate are next in succession. This became the 25th Amendment to the U.S. Constitution, ratified on February 10, 1967.
July 20, 1969 - A global audience watched on television as Apollo 11 Astronaut Neil Armstrong took his first step onto the moon. As he stepped onto the moon's surface he proclaimed, "That's one small step for man, one giant leap for mankind" - inadvertently omitting an "a" before "man" and slightly changing the meaning.
July 27, 1953 - The Korean War ended with the signing of an armistice by U.S. and North Korean delegates at Panmunjom, Korea. The war had lasted just over three years