Who has the power to start, change, and end an ecumenical council?

What issue lead from texas seceding from the union

Many blacks moved from the south to northern cities during world war li looking for employment. after the war, a number of them lost their jobs. why did this happen?

The stamp act: was passed by parliament in 1776 caused the boston massacre was the first direct tax levied by england on the colonists sparked protest in the colonies