1990s /ˈnaɪn.tiːnˈnaɪn.tiːz/ noun[plural only]1 •The period from year 1990 to 1999; almost the same period as the 10th (and last) decade of the 20th century, which, however, was from 1991 to (the end of) year 2000But it wasn’t until the 1990s and 2000s that CDG reached prominence under the stewardship of Osiel Cardenas Guillen. — 2025