1. In 1638, Swedish colonists landed in present-day Wilmington, Delaware, establishing the first permanent European settlement in the area.

2. On March 29, 1777, during the American Revolutionary War, British forces occupied the city of Wilmington. The British commander, General William Howe, established his headquarters at the home of prominent Tory Thomas McKean.

3. In 1862, the state of Delaware adopted a new state constitution on March 29, which remained in effect until 1897.

4. The USS Delaware, a battleship commissioned in 1909 and named after the state, sailed on its maiden voyage on March 29, 1910. The ship saw action during World War I and was decommissioned in 1924.

5. On March 29, 1996, the Delaware River and Bay Authority officially opened the Delaware Memorial Bridge Twin Span. The new bridge, which spans the Delaware River and connects Delaware and New Jersey, nearly doubled the capacity of the previous bridge and reduced traffic congestion.