mapmaking and technology

Mapmaking 2300 B.C

Sep 17, 1700

first know maps was made on a clay tablet

USGS

Sep 17, 1879

USGS created its first mape in 1879,the same year it was founded by Congress for the purpose of the classification of the public lands

1940

Sep 17, 1940

despite the drawbacks, plane-table surveying remained the main method of mapping

20th Century

Sep 17, 1972

the Nationnal Areonautics and Space Administration NASA launched the first Landsat satellites

20th century

Sep 17, 1999

a team of scientist from the American Museum of Natural History used Landsat images to find a new site of dinosaur and early mammal fossils in the gobi desert