What are two major events that happened in the mesozic era

Hello! Here are a couple of major events that happened in the Mesozoic Era.

1. The Mesozoic Era began with the largest mass extinction in history, killing off the vast majority of marine and terrestrial life on Earth.

2. After that mass extinction, the super continent Pangaea began to break off, and the dinosaurs began to flourish the Earth, although they were killed off at the end of the Mesozoic Era.

Ther are many reasons.. is it a multiple choice?