First know as Manachite, Titanium was first discovered by William Gregor in 1791 and was later classified by Martin Heinrich Klaproth, an Austrian chemist, as a new element. He named it after the Greek Gods-The Titans.
Titanium has superior structural integrity and is 3x stronger than steel. Titanium is very light weight (1/3 as much as gold). Although a very hard and durable metal, titanium can still be scratched by abrasive materials like rocks or hardened steel tools.
Titanium also plays a role in gems. Traces of titanium dioxide impurities cause the asterism phenomenon in Star Sapphires and Rubies. Blue sapphires can get their blue color from traces of titanium as well.
*some information sourced from www.americangemsociety.org/all-that-glitters