it is generally assumed it was a singularity in time and space, which started to exist when and after the big bang. if you want, i can add some articles you may want to read!
Answer:
Ellen Johnson Sirleaf: The legacy of Africa's first elected female president.
Answer:
A, hope this answer doesnt change due to it being A for me.
Explanation:
The war of 1812 fought between the Great Britain and United States. The war bounded both the countries on the basis of trade. This war created the economic opportunity for United States as war resulted in growth in factory system in United States.
The Embargo Act helped the United States to establish factories for manufacturing goods in domestic line. This act halted the competition from factories of England and France. This act helped domestic producers to sell their products as earlier they were facing competition from France and England
Maurya Empire and Gupta Empire are the most significant but there has been more than that.
Hope this helps!