An estimated 40% of Americans are descended from people who passed through the Ellis Island immigration station during its six decades of operation. But what was the immigration process like?

For decades migrants from Central America have fled their homes from corruption, crime, poverty and violence to seek a better life in the United States. One of the major causes of such strife? The Cold War.

Trace the journey of Boston's Irish population from poverty to power, spearheaded by one man's determination to see justice for his community, in this digital exclusive.

Until the Spanish arrived in the Southwest, there wasn’t a single cow in America, but within decades their ranching efforts result in over 3 million longhorn cows roaming the Texas grasslands.