"Erie, The Commonwealth"@en . "Western and Central Pennsylvania, Eastern Ohio"@en . . . . . "Erie"@en . . "English, German"@en . "State College, Oil City, Scranton"@en . "Commonwealth of Erie (Yellowstone: 1936)"@en . . "9794103"^^ . "Flag_of_Pennsylvania.svg"@en . . . "Before the fateful eruption of the Yellowstone Caldera, the Commonwealth of Erie was part of the US state of Pennsylvania. Historically this area of the state was important as it provided the only major waterway system and connection for Pennsylvania."@en . "Before the fateful eruption of the Yellowstone Caldera, the Commonwealth of Erie was part of the US state of Pennsylvania. Historically this area of the state was important as it provided the only major waterway system and connection for Pennsylvania."@en . "Yellowstone: 1936"@en . "Commonwealth of Erie"@en . . . "Pittsburg"@en . . . "Commonwealth of Erie: 2013"@en . . .