Brazil has long been a melting pot for a wide range of cultures. From colonial times Portuguese Brazilians have favoured assimilation and tolerance for other peoples, and intermarriage was more acceptable in Brazil than in most other European colonies. However, Brazilian society has never been completely free of ethnic strife and exploitation, and some groups have chosen to remain separate from mainstream social life. Brazilians of mainly European descent (Portuguese, German, French, Italian, Austrian, Polish, Spanish, Hungarian, Lithuanian, Ukrainian, Russian, etc.) account for more than half the population, although people of mixed ethnic backgrounds form an increasingly larger segment; roughly two-fifths of the total are mulattoes ("mulattos"; people of mixed African and European ancestry) and mestizos ("mestiços", or "caboclos"; people of mixed European and Indian ancestry). Portuguese are the main European ethnic group in Brazil, and most Brazilians can trace their ancestry to an ethnic Portuguese or a mixed-race Portuguese. Among European descendants, Brazil has the largest Italian diaspora, the second largest German diaspora, as well as other European groups. The country is also home to the largest Japanese diaspora outside Japan, the largest Arab community outside the Arab World and one of the top 10 Jewish populations.