Briefly describe two ways to formally amend the constitution

Formal method of amending the Constitution

An amendment can be proposed by two-thirds of both houses of Congress or

By two-thirds of state legislatures requesting Congress to call a national convention to propose amendments.

An amendment can be ratified by a favorable vote in three-fourths of all state legislatures or by such a vote in specially called ratifying conventions called in three-fourths of the states.

PS : This is for the US constitution, don't know if it differs for other countries.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

the name of the theory is landmass theory.