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About 250 Utah Armenians and supporters demonstrated in front of the Wallace F. Bennett Federal Building in downtown Salt Lake City Friday, marking the 100th anniversary of the World War I-era slaughter of Armenians by Ottoman Turks.

Historians estimate that up to 1.5 million Armenians were killed, and scholars and several European countries consider the massacres as genocide. President Barack Obama has avoided using the term officially, a position that drew protest at commemorations.