Alfred Wegener (1880–1930) was a German meteorologist and geophysicist who pioneered the theory of continental drift, revolutionizing Earth sciences. His daring Greenland expeditions and seminal work 'The Origin of Continents and Oceans' laid the foundation for modern plate tectonics.
Alfred Lothar Wegener is born in Berlin, Germany, to a theologian father. He grows up in a scholarly environment. #science #history
Wegener graduates from the Köllnisches Gymnasium in Berlin, excelling in natural sciences. #education #science
Wegener enrolls at the Friedrich Wilhelm University (now Humboldt University) in Berlin to study physics, meteorology, and astronomy. #education #science
Wegener transfers to the University of Heidelberg for a semester, then to the University of Innsbruck, broadening his scientific training. #education #science
Wegener begins working as an assistant at the Aeronautical Observatory in Lindenberg, focusing on atmospheric physics and weather balloon observations. #meteorology #science
Wegener earns his doctorate from the University of Berlin with a thesis on star photometers. #astronomy #science
Wegener joins the Danish Expedition to Northeast Greenland led by Mylius-Erichsen as a meteorologist, wintering on the ice cap. #exploration #science
Wegener returns from the expedition and completes his habilitation at the University of Marburg, becoming a Privatdozent (lecturer). #exploration #science
Wegener publishes 'Thermodynamics of the Atmosphere,' a seminal text in meteorology. #meteorology #science
Wegener delivers a lecture at the Geological Association in Frankfurt, first publicly proposing the theory of continental drift based on fitting coastlines and fossil evidence. #geology #continentaldrift
Wegener's paper 'Die Herausbildung der Grossformen der Erdrinde' (The Formation of the Major Features of the Earth's Crust) appears in Petermanns Geographische Mitteilungen. #geology #continentaldrift
Wegener marries Else Köppen, daughter of meteorologist Wladimir Köppen, strengthening his ties to the scientific community. #personal #science
Wegener serves as a reserve officer in the German Army, but is later released for scientific work due to his expertise in meteorology. #history #war
Wegener publishes the first edition of his magnum opus detailing the theory of continental drift, including evidence from geology, paleontology, and climatology. #geology #continentaldrift
Wegener is assigned to the German meteorological service, providing weather forecasts for military operations on the Western Front. #meteorology #war
Wegener is discharged after the Armistice and returns to academic work at Marburg. #history #science
Wegener is promoted to associate professor (außerordentlicher Professor) of meteorology at the University of Marburg. #meteorology #science
Wegener publishes an expanded second edition of his book, incorporating new evidence and addressing criticisms. #geology #continentaldrift
The third edition of 'The Origin of Continents and Oceans' is published, further refining his theory with additional paleontological data. #geology #continentaldrift
Wegener is appointed full professor of meteorology and geophysics at the University of Graz, Austria, gaining more resources for research. #science #career
Wegener exchanges letters with critics like Harold Jeffreys, defending his theory against geophysical objections. #geology #debate
Wegener participates in the American Association of Petroleum Geologists symposium, where most geologists reject his theory, though he remains convinced. #geology #continentaldrift
Wegener studies fossils and rock formations in South Africa and South America, strengthening biological and geological arguments for Pangaea. #geology #exploration
Wegener conceives a major Greenland expedition to study ice cap dynamics and test his climate theories. #exploration #science
Wegener leads an advance team to Greenland, establishing a base camp and conducting meteorological observations. #exploration #science
Wegener's team sets up 'Eismitte' (Mid-Ice) station at the center of the Greenland ice cap, where winter observations will be made. #exploration #science
Wegener publishes the fourth and final edition of his book, incorporating the latest geological evidence. #geology #continentaldrift
Wegener embarks on his third expedition, aiming to resupply Eismitte and conduct year-round ice cap research. #exploration #science
Wegener arrives at the expedition's West Camp on the coast and organizes supply lines to the interior. #exploration #science
Severe weather and supply shortages force Wegener to delay the journey to Eismitte; he decides to lead a final resupply party himself. #exploration #challenge
Wegener, accompanied by a Greenlandic guide, leaves West Camp with dog sledges to bring supplies to the inland station. #exploration #hardship
After a grueling journey, Wegener reaches Eismitte, where the scientists are short on food and fuel. #exploration #science
Wegener celebrates his 50th birthday at Eismitte, then starts his return journey to the coast. He is never seen alive again. #exploration #tragedy
Wegener perishes from exhaustion and cold on the Greenland ice cap, near the West Camp. His body is later found buried in the snow. #exploration #death
A search party discovers Wegener's body, carefully buried, along with his diary and personal effects. He is honored posthumously. #exploration #remembrance
The surviving expedition members return to Germany, and Wegener's death and the achievements of the expedition are reported worldwide. #exploration #legacy
Despite initial rejection, a minority of geologists begin to support continental drift, especially in the Southern Hemisphere. #geology #continentaldrift
Harry Hess's theory of seafloor spreading and the discovery of magnetic striping provide strong evidence for continental drift, leading to plate tectonics. #geology #platetectonics
The Alfred Wegener Institute for Polar and Marine Research is established in Bremerhaven, Germany, honoring his contributions to polar science. #science #legacy
Modern plate tectonics, supported by GPS measurements and global geophysics, confirms Wegener's hypothesized supercontinent Pangaea and its breakup. #geology #platetectonics
