During the Dust Bowl of the 1930s, millions of desperate Americans abandoned their homes, farms and businesses. It was one of the largest migrations in US history. In the 1940s, Pat Rush’s family were farm laborers, exhausted by trying to make ends meet. So they left Arkansas and followed the hundreds of thousands who had traveled Route 66 to California. There, the federal government had built resettlement camps to help deal with the influx. Migrant stories have two parts: the leaving of an old life, and the building of a new one.

In the spring of 1981, the Pawtucket Red Sox and the Rochester Red Wings met for a minor league baseball game of little importance. But over the course of 33 innings — 8 hours and 25 minutes — the game made history. It was the longest professional baseball game ever played. This story was produced in collaboration with ESPN's 30 for 30.

Ever since Texas became a state, the Rio Grande has been the border between the U.S. and Mexico. But rivers can move — and that's exactly what happened in 1864, when torrential rains caused it to jump its banks and go south. Suddenly the border was a different place, and Texas had gained 700 acres of land called the Chamizal, named after a plant that grew in the area.

The Chamizal was a thorn in the side of U.S.-Mexico relations for a century, until Sept. 25, 1964, when the U.S. finally gave part of the land back to Mexico. But by that time, roughly 5,000 people had moved to the area and made it their home. This is their story.