They began development of "Qt" in 1991, three years before the company was incorporated as Quasar Technologies, then changed the name to Troll Tech and then to Trolltech.
Nad alustasid Qt arendamist 1991 aastal, 3 aastat enne firma loomist, mis kandis nime Quasar Technologies, hiljem võtsid uue nime Troll Tech ja siis nimetasid ümber Trolltech-ks.