China's increased conflict with the soviet union :)
The territorial expansion of the US and the question of whether or not slavery would be allowed in the new territories was perhaps the single greatest factor leading up to the war, since before expansion, slavery was mostly confined to the South.
yes its called ythe stone age
All of the colonies except Cuba and Puerto Rico attained independence by the 1820's.
The ozone layer is what protects us from the suns radiation.
Your question doesn’t sound right but that’s what I think you asked for.