1. On August 3, 1863, Union soldiers clashed with Confederate troops during the Battle of Little Rock, which was fought near the capital city of Arkansas. The Union victory was a key moment in the Union's push to gain control of the Mississippi River.

2. August 3, 1908, marked the unveiling of the Maine State House's newly renovated dome. The restoration of the dome, which had been damaged by lightning years earlier, was the first major renovation of the State House since its opening in 1832.

3. On August 3, 1914, the first Maritime Federation of America convention was held in Portland, Maine. The convention brought together representatives from various maritime unions and marked a significant step in the fight for labor rights in the maritime industry.

4. August 3, 1942, saw the sinking of the American freighter SS Steel Seafarer off the coast of Portland, Maine, by a German U-boat. The attack was one of several that occurred along the East Coast during World War II and highlighted the vulnerability of American shipping lanes.

5. On August 3, 1991, the first-ever Lobster Festival parade was held in Rockland, Maine. The annual festival is now a beloved summer tradition in the state, attracting tourists from around the world to celebrate Maine's iconic crustacean.