What has happened to the American Constitution? History high school.

What you are talking about is an amendment to the American Constitution. The specific explanation is as follows:

1, modify the constitutional background:

1787 Constitution did not include the democratic rights recognized by the Declaration of Independence and some state constitutions at that time, which was strongly opposed by the broad masses of the people. Later, under the pressure of bourgeois democrats and the influence of 1789 French bourgeois revolution, the US Congress passed the 10 constitutional amendment on September 25th, 789, and obtained it on February 5th, 2000. This 10 amendment is collectively referred to as the "Bill of Rights".

2. Main contents:

The main contents are: Congress shall not make laws that deprive citizens of freedom of speech, publication, peaceful assembly and petition; Shall not illegally search and detain citizens' persons, houses, documents and property; No one shall be deprived of freedom, life or property, and some democratic rights in judicial proceedings, except in accordance with due legal procedures. Later, 16 constitutional amendments were added one after another, including: 13 ~ 15 amendment, which came into effect after the civil war, abolished slavery and guaranteed black rights; Amendment 19, which came into effect on 1920, provided that American women had the right to vote; The 24th amendment, which came into effect in 1964, involves the removal of poll tax restrictions during the election period; 197 1 amendment to article 26 on lowering the age of referendum, etc. These 26 amendments became part of the US Constitution.