Answer:
The campaign was heralded by the Battle of the Kalka River in May 1223, which resulted in a Mongol victory over the forces of several Rus' principalities. ... All Rus' principalities were forced to submit to Mongol rule and became vassals of the Golden Horde empire, some of which lasted until 1480
Explanation:
Answer:
The imaginary line of Demarcation was drawn from the north to the south through the Atlantic Ocean, splitting it between Portugal and Spain.
Answer:
This is False
Explanation:
The Earth is the third planet from the sun. It has a mass of 5.972 × 10^24 kg.
About 90 percent of the mass of the Earth is composed of elements and compounds such as iron–nickel alloy (95% iron) in the core (30%), and the silicon dioxides (c. 33%) and magnesium oxide (c. 27%) in the mantle and crust.Diamond doesn’t account for three-quarters of the planet’s mass.
