Tag Archives: Scientific Discovery

Main image: A 1930 photograph of German meteorologist and geologist Alfred Wegener. Inset: An early computer-assisted reconstruction of Pangea, fitting many of the current continents together.
1912: Alfred Wegener and the Theory of Continental Drift

Alfred Wegener's theory of continental drift, initially met with skepticism, fundamentally changed geology with the later discovery of tectonic plates

A mid-nineteenth century painting by artist Thomas Burnham depicting Lewis and Clark scouting ahead during their 1804 expedition to the American Northwest.
1804: The Lewis and Clark Expedition – Charting North America

The Lewis and Clark Expedition, commissioned by President Jefferson, was a landmark journey from 1804 to 1806 that mapped 8,000 miles of North America. While aiming to assert U.S. sovereignty, it also led to significant [...]