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PROULX, JEAN-PIERRE. Whaling in the North Atlantic. From Earliest Times to the Mid-19th Century.

Atlantic Ocean Floor Map. Groundbreaking map of the ocean floor created by technician Marie Tharp and Professor Bruce Heezen, image via The Earth Institute, Columbia University. Together, Marie and Bruce rewrote 20th century geophysics by creating the first systematic, comprehensive map of the entire ocean floor. This paved the way for general acceptance of the theories of continental drift and plate tectonics.

This final of the three global sequences shows the continents drifting apart, in reverse, from 260 million years ago to 600 million years ago. There was still nearly 4 billion years of tectonic evolution prior to where these maps begin.
from The Atlantic

What Did the Continents Look Like Millions of Years Ago?

This final of the three global sequences shows the continents drifting apart, in reverse, from 260 million years ago to 600 million years ago. There was still nearly 4 billion years of tectonic evolution prior to where these maps begin.

black soldiers | World War II: The Allied Invasion of Europe - In Focus - The Atlantic

April 15, 1912, less than 3 hours after hitting an iceberg in the North Atlantic off Newfoundland, the RMS Titanic sinks killing over 1500.

civil war railroads | Sherman's Men Destroying Atlanta Railroads; Barnard, George N., 1819 ...

1865. "Charleston, South Carolina. Breach patched with gabions on the north wall of Fort Sumter." From photographs of the Federal Navy, and seaborne expeditions against the Atlantic Coast of the Confederacy, 1863-1865.