Here are entered works on a movement for the purpose of church cooperation and unity, generally dated from the Edinburgh Missionary Conference of 1910 and leading to the formation of the World Council of Churches in 1948. Works on prospective and actual mergers within and across denominational lines are entered under Christian union. Works on unity as one of the "marks" of the church are entered under Church--Unity. Works on religious activities planned and conducted cooperatively by two or more Christian sects are entered under Interdenominational cooperation.
Here are entered works that discuss the movements of robots and their component parts in general. Works that discuss the motion of robots in relation to the forces affecting them are entered under Robots--Dynamics.
Here are entered works on American religious congregations that publicly give shelter to Central American refugees or to Central Americans who illegally immigrate to the United States.