The Twentieth Century -

To explore this era effectively, historians recommend focusing on the " five C's of historical thinking ": change over time, causality, context, complexity, and contingency. American Community Survey Information Guide - Census Bureau

The 20th century was an era of unprecedented transformation, defined by a "radical transformation of social attitudes," global decolonization, and the emergence of modernism. Often described through Eric Hobsbawm's lens as the " Age of Extremes ," it balanced massive technological leaps with devastating global conflicts. The Twentieth Century

: Major inventions such as planes, computers, and space exploration changed daily life worldwide and influenced the course of history. Thematic Areas of Inquiry To explore this era effectively