The term "Palestine refugee" originally included both Arabs and Jews whose normal place of residence had been in Mandatory Palestine but were displaced and lost their livelihoods as a result of the 1948 Palestine war. The UNRWA definition of the term includes the patrilineal descendants of the original "Palestine refugees". In 2012, there were an estimated 4,950,000 registered patrilineal descendants of the original "Palestine refugees", based on the UNRWA registration requirements, of which an estimated 1.5 million lived in UNRWA camps. The number of original refugees "who meet UNRWA’s Palestine Refugee criteria" was 711,000 in 1950 of which approximately 30,-50,000 were still alive in 2012.