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The map of North America with the Western Interior Seaway during the Campanian. The Western Interior Seaway (also called the Cretaceous Seaway, the Niobraran Sea, the North American Inland Sea, or the Western Interior Sea) was a large inland sea that split the continent of North America into two landmasses for 34 million years.
Between 1492 and 1504, the Italian navigator and explorer Christopher Columbus [a] led four transatlantic maritime expeditions in the name of the Catholic Monarchs of Spain to the Caribbean and to Central and South America. These voyages led to the widespread knowledge of the New World.
The Central American Seaway (also known as the Panamanic Seaway, Inter-American Seaway and Proto-Caribbean Seaway) was a body of water that once separated North America from South America. It formed during the Jurassic (200–154 Ma ) during the breakup of the supercontinent Pangaea , and closed when the Isthmus of Panama was formed by volcanic ...
The Great Depression was the worst economic crisis in US history. More than 15 million Americans were left jobless and unemployment reached 25%.
During the Silurian, warm, shallow seas covered most of North America. Illinois, Indiana, and Michigan were home to vast coral reefs. [17] The reefs of Indiana in particular are among the most diverse of the period on the entire continent. [19] The southeastern United States were still part of Gondwanaland during the Silurian. [20]
The photos, from the U.S. Library of Congress, give us a rare glimpse of life in the U.S. during World War II in color.
Take a visual tour of America's national parks. ... Gorgeous Photos of America's 63 National Parks. Mia Taylor. June 9, 2024 at 8:15 PM ... A full two-thirds of the island of St. John is part of ...
In 1525, Spanish navigator Francisco de Hoces discovered the Drake Passage while sailing south from the entrance of the Strait of Magellan. [2] Because of this, the Drake Passage is referred to as the "Mar de Hoces (Sea of Hoces)" in Spanish maps and sources, while almost always in the rest of the Spanish-speaking countries it is mostly known as “Pasaje de Drake” (in Argentina, mainly), or ...