The u. s. congress refused to ratify the treaty of versailles (1919) because
a) it punished germany too harshly.
b) the united states did not receive enough territory.
c) president wilson was against the league of nations.
d) it felt the league of nations would restrict america of its sovereignty.

The right answer is D.

Explanation:

The US joined the WWI rather late.  At that time, it wasn´t still evident to the public or to many members of Congress that the security and the interests of the USA would require active participation in world affairs after the end of the war. There have always been isolationist feelings in America and those were strong in the aftermath of WWI. Despite the fact that he had played a major role in the negotiations leading to the peace accord of Versailles, president Woodrow Wilson failed to persuade Congress to join the League of Nations.

here are some major conflicts i found. maybe pick one and do more research on it. (cause i ain't writing 6 paragraphs)

in 1877, the nez perce war took place.

1881 - president james garfield was assassinated.

1882 - the chinese exclusion act was passed.

1883 - a decision in the civil rights cases legalized racial segregation in the united states.

1887 - the dawes act was passed.

1893 - the panic of 1893 took place. (what a creative name)

and there are probably other topics you can find if you just search up "united states timeline," or "conflicts in the 19th century for america."

then once you find a topic you like find out how it affected the people of america and what not. (sorry if this feels a bit short changed, history was and never will be one of my strong topics)

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.