Which organization was developed to strengthen and charter national unions? knights of labor american federation of labor national labor union

Aging populations can be a problem for developed countries because a) there are fewer younger workers coming into the workforce. b) most older workers demand top-level pay and full benefits. c) many older people are skilled in manufacturing, not technology. d) younger workers cannot find jobs when older people work longer.

What would lead a historian to consider two events to have a relationship of correlation rather than causation

The irish and germans of the 1840's were part of the new immigration. true or false