Template:Roman Empire The Roman Empire (Latin: Imperium Romanum, Greek: Basileia Rhomaion (SPQR or S.P.Q.R) commonly referred to as "Romania", is a federal parliamentary constitutional monarchy contains many states, 3 capitals, and 1 special district. The empire is the longest contiguous empire in the world which spans from Hawaii to the Marianas. The empire has 3 landmasses, one in the southern half and sometimes eastern part of modern-day U.S.A.. Another landmass is the Mediterranean sea containing most of the Roman Empire from antiquity and possessions of the Sahara desert. The eastern landmass is an archipelago located north of Australia and south of the Eurasian mainland. The western part of the Australian continent, the Philippines, and the Marianas are also colonized as well. It is one of the most ethnically diverse and multicultural nations, the product of large-scale immigration and colonization. The Roman Empire also contains the most diverse geography and climate and is home to a wide variety of wildlife.