What is the difference between Theravada buddhism and Mahayana buddhism?

Explanation:

Theravāda is the most commonly accepted name of Buddhism's oldest existing school. The school's adherents, termed Theravādins, have preserved their version of Gautama Buddha's teaching in the Pāli Canon.

Mahāyāna is a term for a broad group of Buddhist traditions, texts, philosophies, and practices. Mahāyāna is considered one of the two main existing branches of Buddhism. Mahāyāna Buddhism developed in India.

You can just look up their cultures and stuff on the internet to try and help explain the difference! But here is there differences from the internet.

a. it led to stricter immigration laws.