REMOVE

1. Arctic Ocean

WHAT

1. Atlas Map (7)
2. World Atlas (4)
3. Exploration (3)
4. Chart Atlas (2)
5. Chart Map (2)

WHERE

1. Alaska (2)
2. Arctic (1)
3. Asia (1)
4. Canada (1)

WHO

1. Academie Royale des Scien … (3)
2. Alpha, Tau Rho (2)
3. Bröuckner, Isaak, 1686-1 … (2)
4. Schmettau, Samuel (2)
5. U.S. Geological Survey (2)

WHEN

1. 1749 (2)
2. 1988 (2)
3. 1665 (1)
4. 1752 (1)
5. 1802 (1)