The late 19th century in American history marked a period of expanding industrialization and national security concerns.

The next two centuries, however, marked a turbulent period in the town's history.

Last year marked a difficult period for Wendy's, which reported a loss of $4.9 million.

The 15th century marked a watershed period in the history of Indian classical music.

Off the field, 2011 and 2012 marked a period of transition.

The 1990s marked a period of introspection for the group.

This time marked a period of major growth for the middle and working-class population.

This date marks a new period in his artistic activity.

The 1920s marked a period of sharp decline for the labor movement.

Nevertheless, it is only fair to say that this marks a period of 'boom' in house prices.