Which event completes this timeline?

Acharge on imported goods is known as what kind of tax? income excise personal

Which of the following events happen during president hardings term? a) the supreme court decided to break up large corporations. b) the supreme court strength and state laws protection labor union. c) the supreme court ruled in favor of extended regulations of child labor. d)the supreme court made it easier for large businesses to operate.

Who was william mckinley? what platform did he run on?