History of geometry History of geometry Geometry (from the ; "geo-" "earth", "-metron" "measurement") arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers (arithmetic). 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. In modern times, geometric
Ptolemy II of Telmessos of Antipater. Ptolemy II was born and raised in Telmessos in Lycia at an unknown date during his father’s reign of Telmessos. His father Lysimachus ruled as the Ptolemaic Client King of Telmessos from February 240 BC until his death in 206 BC. Little is known on his early life prior to succeeding his father. When his father died in 206 BC, Ptolemy II became the fourth and final ruler from the Lysimachid dynasty, which is also known as the Ptolemaic/Lysimachid dynasty in Lycia to rule the city. Ptolemy II also, was the third and final Ptolemaic Client King of