History of geometry
Classic geometry was focused in compass and straightedge constructions. Geometry was revolutionized by Euclid, who introduced mathematical rigor and the axiomatic method still in use today. His book, "The Elements" is widely considered the most influential textbook of all time, and was known to all educated people in the West until the middle of the 20th century.
Anton Albert Beekman
Anton Albert Beekman (5 January 1854 – 23 May 1947) was a Dutch geographer who focussed mainly on Dutch geography and other European countries. He is seen as one of the original founders of modern geography.