"The Lion King" was the first movie of the Disney Renaissance era

Explanation

The first one was "The Little Mermaid" (1989), which was the first movie to revitalize the studio's classic outputs with Broadway-style musicals and more complex storytelling, marking the beginning of this era. "The Lion King" is the 5th and highest-grossing movie of this era (1994), and it ended with "Tarzan" (1999).