The Kyoto Protocol started on December 11th, 1997, and took effect around February 16th,2005.

becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery

hope this

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

d.

the northwest territory became the most densely populated area in the u.s.

the western roman empire flourished, but the eastern portion of the empire struggled.