:the great plains in the 1870’s had fertile soil, but the settlers had to deal with tough sod, which led to the development of the what?

In the united state, a system for interaction between unmarried men and woman that casual dating with the purpose of marriage was called

Which of these discoveries contradict components of dalton’s atomic theory?

After world war 2 the united states and great britain sought no intervention in conquered lands sought to divide up lands from defeated countries sought to gain colonies sought vengeance for damages in war