What happened in 1915 that finally made the u. s. ready to join the war in ww1

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

Which of the following best describes the geography of oklahoma? a. extreme elevation differences b. varied ecological regions c. limited, mountainous geography d. flat rolling hills to below sea level areas

What do the differing approaches of booker t. washington and w.e.b du bois suggest about their views of american society?