1800

NYC population: 60,000

1825

Erie Canal completed

1830s

Lowell textile mills flourish

1845-1847

Great Famine in Ireland

1846-1853

Irish immigration swells

1855

NYC population: 800,000

1857

Five Points riot

1861-1865

Civil War

1877

The Great Railroad Strike

1880s

Irish-Americans help build the first national labor union in the US, the Knights of Labor

1890s

"New" immigrants from Southern and Eastern Europe begin arriving in large numbers