Complex sentence: The Most Beautiful Girl in Nigeria (MBGN) pageant originally began as Miss Universe Nigeria in 1983, and was created by Silverbird Group, renamed Most Beautiful Girl in Nigeria in 1986.
Split into simpler sentences: The Most Beautiful Girl in Nigeria (MBGN) pageant originally began as Miss Universe Nigeria in 1983, and was created by Silverbird Group. It was later renamed Most Beautiful Girl in Nigeria in 1986.