TWhich event signaled the start of World War I? Russia invaded Serbia, which angered the people of Germany.
Austria-Hungary invaded Serbia, which led Russia to get involved.
Italy invaded Germany, which violated a treaty from the late 1800s.
Great Britain invaded France, which caused Europe to take sides.

yes

explanation:

the fighting words doctrine, in united states constitutional law, is a limitation to freedom of speech as protected by the first amendment to the united states constitution. in 1942, the u.s. supreme court established the doctrine by a 9–0 decision in chaplinsky v. new hampshire.

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.