History of Titanium. In 1789 Rev. W. Gregor discovers Titanium dioxide in Rutile.1795 Klaporth rediscovers titanium dioxide and recognizes it as the oxide of a metal to which he gives the name titanium.. History of Titanium continued. 1821-3 Rose reports on titanium, its oxides and sulphides. These were the first reports on pure compounds of this element.1825 Berzelius isolates metallic titanium.1869 Schonn reports yellow color produced by reacting titanium salts with hydrogen peroxide..