Johan Adams was writing to James Sullivan explaining why changing the requirement to vote would be so controversial. He wrote this shortly after the American Revolution and before the signing of the US Constitution. He stated that women, and poor men would soon want the right to vote and believed that the qualifications to vote should not be changed. This is important to voting because is established who can vote and who could not.
Because of the disability to vote for women, in 1848, the first Women's Rights Convention is held. It demands that women be granted all rights as full citizens including the right to vote. And since then, more and more women began to take action to fight for their voting right.
The 15th amendment give black people right to vote in theory and the blacks sill need to fight for voting, Besides, the 15th amendment only give the American citizens right to vote. The 15th Amendment does not apply to Native-Americans or Asians because they cannot be citizens.
The 15th amendment was passed and it gives people right vote. And Civil rights enforcement ends with reign of terror, legal disenfranchisement, poll taxes, and segregation laws.
The women suffrage was introduced to the Congress, which means the the government had realized the problem. It was a huge achievement for the women and it takes 42 years of courageous struggle to finally ratify it in 1920.
After decades of political action and public pressure from the Populist movement, a constitutional amendment is passed requiring direct election of Senators by the people rather than Senators being appointed by state legislators.
After the "Compromise of 1877" ends Reconstruction, most southern Blacks are denied the vote. In 1944, NAACP attorney Thurgood Marshall wins Smith v. Allwright in the U.S. Supreme Court which rules that "all-white" primary elections are unconstitutional. In many areas of the South, the Democratic Party evades this ruling by simply no longer publicly proclaiming that only whites can vote in their primaries.
The 26th amendment gives teenager right to vote. The law used to only give people older than 21 rights to vote.