What are upton and sinclair and lincoln steffens known for doing?

Which of the four planes was hijacked first? a.flight 175 b.flight 77 c.flight 11 d.flight 93

Hich answer supports the statement, "the state constitution is more detailed than the u.s. constitution"? a) the u.s. constitution was created after state constitutions had been established. b) the u.s. constitution only exists because the state constitutions allowed it to be created. c) the articles in the state constitution do not deal with amendments like the u.s. constitution does. d) the articles in the state constitution deal with more specific issues than does the u.s. constitution.

What would be considered a secondary source about the assasination of abraham lincoln