Historians think the 13th, 14th, and 15th Amendments were very important because they changed American society and made civil rights better for many people.

1. 13th Amendment (1865):

   • This amendment ended slavery.
   • It freed about 4 million enslaved people in the United States.

2. 14th Amendment (1868):

   • This amendment gave citizenship to everyone born in the U.S. or who became a citizen.
   • It also made sure that all people are treated equally under the law, which helped over 30 million citizens by 1870.

3. 15th Amendment (1870):

   • This amendment said that no one could be denied the right to vote because of their race, color, or past experiences of being enslaved.
   • Because of this, over 1.5 million Black men were able to vote in elections by 1870.

These amendments worked together to change American laws and improve society, helping to promote equality and rights for people who had been treated unfairly.