Under emperor Trajan (2nd century AD) the empire reached its maximum expansion, controlling approximately 5900000 sqkm of land surface, including Italia, Gallia, Dalmatia, Aquitania, Britannia, Baetica, Hispania, Thrace, Macedonia, Greece, Moesia, Dacia, Pannonia, Egypt, Minor Asia, Cappadocia, Armenia, Caucasus, North Africa, Levant and parts of Mesopotamia.