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The U.S. census race definitions says a "black" is a person having origins in any of the black (sub-Saharan) racial groups of Africa. It includes people who indicate their race as "Black, African Am., or Negro" or who provide written entries such as African American, Afro-American, Kenyan, Nigerian, or Haitian. The Census Bureau notes that these classifications are socio-political constructs and should not be interpreted as scientific or anthropological. Most African Americans also have European ancestry in varying amounts; a lesser proportion have some Native American ancestry. For instance, genetic studies of African Americans show an ancestry that is on average 1718% European.

How does the U.S. census define "black" Americans?
Answer: having origins in any of the black (sub-Saharan) racial groups of Africa
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The ecumenical movement has had an influence on mainline churches, beginning at least in 1910 with the Edinburgh Missionary Conference. Its origins lay in the recognition of the need for cooperation on the mission field in Africa, Asia and Oceania. Since 1948, the World Council of Churches has been influential, but ineffective in creating a united church. There are also ecumenical bodies at regional, national and local levels across the globe; but schisms still far outnumber unifications. One, but not the only expression of the ecumenical movement, has been the move to form united churches, such as the Church of South India, the Church of North India, the US-based United Church of Christ, the United Church of Canada, the Uniting Church in Australia and the United Church of Christ in the Philippines which have rapidly declining memberships. There has been a strong engagement of Orthodox churches in the ecumenical movement, though the reaction of individual Orthodox theologians has ranged from tentative approval of the aim of Christian unity to outright condemnation of the perceived effect of watering down Orthodox doctrine.

What have Orthodox churches condemned the perception of?
Answer: watering down Orthodox doctrine
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Sporadic epigraphic evidence in grave site excavations, particularly in Brigetio (Szony), Aquincum (Obuda), Intercisa (Dunaujvaros), Triccinae (Sarvar), Savaria (Szombathely), Sopianae (Pecs), and Osijek in Croatia, attest to the presence of Jews after the 2nd and 3rd centuries where Roman garrisons were established, There was a sufficient number of Jews in Pannonia to form communities and build a synagogue. Jewish troops were among the Syrian soldiers transferred there, and replenished from the Middle East, after 175 C.E. Jews and especially Syrians came from Antioch, Tarsus and Cappadocia. Others came from Italy and the Hellenized parts of the Roman empire. The excavations suggest they first lived in isolated enclaves attached to Roman legion camps, and intermarried among other similar oriental families within the military orders of the region.Raphael Patai states that later Roman writers remarked that they differed little in either customs, manner of writing, or names from the people among whom they dwelt; and it was especially difficult to differentiate Jews from the Syrians. After Pannonia was ceded to the Huns in 433, the garrison populations were withdrawn to Italy, and only a few, enigmatic traces remain of a possible Jewish presence in the area some centuries later.

The large number of Jews in Pannonia formed communities and built what?
Answer:
a synagogue