They and their practices were only discovered in the 20th century.

The church also contains a 13th-century chest, first discovered in the early 20th century.

They were discovered in the 20th century when the Moscow subway was built.

There, the first examples of the style were discovered in the mid-19th century.

They were probably discovered by Geber in the 8th century.

The town is built around a popular hot spring which was discovered in the late 19th century.

The region was discovered by the Dutch in the early 17th century.

However, many have been discovered or explored only in the 20th century.

The technique was discovered, almost accidentally, in the early 20th century.

The site was discovered in the late 19th century.