Which of these took place first during this period? appeasement lend-lease act neutrality acts treaty of versailles?

The Treaty of Versailles happened first.

This treaty officially ended World War I. In this treaty, Germany was forced to take full responsibility for the war and were forced to pay war reparations to countries like France. This economic punishment of Germany lead to a huge recession in the German economy. Ultimately, this failed economy allowed for the rise of Adolph Hitler. This is because German citizens were looking for an individual to make German prosperous and powerful.

All of the other events would are directly or indirectly a result of the Treaty of Versailles.