What was happening in the world during 1870s-1930s?

The period from the 1870s to the 1930s was marked by significant social, political, and technological changes globally. The Industrial Revolution continued to reshape economies and societies, leading to urbanization and the rise of labor movements. This era also saw the expansion of Imperialism, with European powers colonizing large parts of Africa and Asia. Additionally, World War I (1914-1918) and the onset of the Great Depression in the late 1920s drastically altered political landscapes and economic conditions worldwide.