He was active in this work during the mid-19th century.

He was particular active within the television industry during the 1960s and 1970s.

They were active during the 1980s, 1990s and early 2000s.

The group was most active during the late 90s and two years of 2000.

It is active both during the day and at night.

It lives on the ground and is active during the night.

They are active both during the day and at night.

They were active during the late 1970s and early 1980s.

They are active during the night, and have big eyes.

He was not active for any of the games during the 2008 season.