The document provides an overview of immigration, segregation, and the Progressive Era between 1870-1920. It discusses how 20 million Europeans immigrated to the US during this period, with half a million Chinese and Japanese also immigrating to the west coast. This led to anti-immigrant sentiments. Cities grew rapidly due to the influx of immigrants and African Americans seeking jobs and opportunities. The Progressive movement aimed to address issues like corruption, unsafe working conditions, and inequality through reforms to protect social welfare, promote moral values, create economic reforms, and foster efficiency. Notable progressive presidents like Theodore Roosevelt and Woodrow Wilson passed regulations to curb monopolies and empower workers and consumers.