Entomology has been important to the Academy since its founding.

The mouth of the Don River has been very important since the ancient times.

Anarchism has been important in the advocacy of free love since its birth.

"Which is very important since they take up so much of our time."

Western Europe has been important in Chinese foreign trade since the mid-1960s.

The distinction between warm and cool colors has been important since at least the late 18th century.

Landscape photography has been very important since the 19th century, and is covered by its own article.

The city has been important politically to China since the end of the 19th Century.

Cultural diplomacy, he added, "probably hasn't been this important since the cold war."

Education has been important to the community since the early 1820s and probably earlier.