Similar to エリー・トライアングル

Twelve-Mile Circle

Wexford, Pennsylvania

Delaware Wedge

Gettysburg Battlefield

Joanna, Pennsylvania

Delaware Valley

Barto, Pennsylvania

Transpeninsular Line

Fairhill, Philadelphia

Mason–Dixon line

Lehigh Valley

Wyoming Valley

History of the United States

Canadian Americans

History of the United States (1776–1789)

History of the United States (1789–1815)

History of the United States (1849–1865)

History of the United States (1865–1917)

History of the United States (1917–1945)

History of the United States (1945–1964)

History of the United States (1964–1980)

History of the United States (1980–1991)

History of the United States (1991–2008)

English Americans

American ancestry

Compromise of 1850

In God We Trust

Advent Christian Church