It is important because if the cause didn't happen the effect wouldn't exist
Explanation:
Our nation was formed from colonies of other nations, and the native peoples they encountered in North America. The revolution that gave us independence was in fact a world war, and battles fought elsewhere determined the outcome as much as what happened in North America
Bantu languages were the languages used in the whole sub Saharan Africa.
Explanation:
Bantu people of the sub Sahara territory were migrants and they migrated across the whole continent below Sahara.
They took their language with them and often became the ruling lass of the places they would reach and thus it was something that bound these empires together.
The empires that were formed used the Bantu tongue for a long time and they were also ethnically related thus.
The Bantu people were thus the ones that would migrate and rule the Sub Saharan region.