Before the Interstate was built, US Route 6 was the busiest highway in Iowa.

In the early 1950s, a turnpike along the US 6 corridor was slated to be the first modern four-lane highway in the state, but those plans were shelved when the Interstate Highway System was created in 1956.

On the coast, Salem became a center for privateering.

Although the documentation is incomplete, about 1,700 letters of marque, issued on a per-voyage basis, were granted during the American Revolution.

The first section of I-80 opened in 1958 in the western suburbs of Des Moines, and new sections of the Interstate opened up regularly over the next twelve years.

The final segment in Iowa, the Missouri River bridge to Omaha, Nebraska, opened in 1972.

Both religious dissent and expansionism resulted in several new colonies being founded shortly after Plymouth and Massachusetts Bay elsewhere in New England.

for the agitation there that led to the American Revolution.

The entire Commonwealth of Massachusetts has played a powerful commercial and cultural role in the history of the United States.

Nearly 800 vessels were commissioned as privateers and are credited with capturing or destroying about 600 British ships.

was an important figure in both the struggle for independence as well as the formation of the new United States.