Which emperor's assassination set off the crisis of the third century

Alexander Severus

Explanation: The assassination of the Roman emperor Alexander Severus in 235 was the beginning of what was known as "The Crisis of the Third Century" which lasted 50 years. It was a period of political and economic pressure inside and outside the Roman empire. It finished with the ascent of Diocleciano in 284.

under god i have placed my chiest strentgh and the safe guard to my loyal subjects

where are the answers

explanation:

be cause we need them