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1879
The USGS created its first map in 1879. -
1950's
In the 1950's a coast guardsman prepared to take pictures during a flight. -
1972
In 1972, the National Aeronautics and Space Administration (NASA) launched the first Landsat satellite. -
1999
In 1999, a team of scientists from the American Mueseum of Natural History used Landsat images to find a new site of dinosaur and early mammal fossils in the Gobi Desert. -
map of 2300 B.C.
One of the first known maps was made on a clay tablet about 2300 B.C. in ancient Sumeria.