The first ten amendments to become part of the constitution is called the bill of rights.
The amendments were written to change the constitution. The Constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote of both the house of representatives and the senate.
why are they important.
These amendments were added to the Constitution at the insistence of the Anti-fedralist during the debates over ratification. The fear of a dominating federal government, And that specific rights and liberties were going to be protected.