They were used until the 6th century, and probably later.

Earth history is well known to us until the 21st century.

They were in use for over 300 years until the late 19th century.

However, he is the only one to talk about the play until the 19th century.

The first services weren't held in the church until the early 17th century.

The real answer was not known until the 20th century.

Not much is known about the history until the 18th century.

Until the 20th century, a president who called the military into action did not have much to work with.

The entire population lived inside the city wall from 1437 until the 18th Century.

The school's first female student was not until the 19th century.