Why did European nations form alliances in the early 1900s?

Which of the following individuals is promoting the idea of nationalism?

Which of the following contributed to the grown and success of the roman empire

Plz which of the following provisions of the compromise of 1850 was designed to appeal to slave states? a. congress passed a strict fugitive slave law. b. the slave trade was banned in washington dc. c. texas agreed to give away some of its land so that the territory would be available for future states. d. california was admitted to the union as a free state.