Please check out US Voting Rights Timeline for some very interesting and likely little known facts. http://www.gqed.org/assets/pdf/education/digitalmedia/us-voting-rights-timeline.pdf
A few highlights:
1872 Susan B. Anthony sent to prison for trying to vote
1876 Native American ( Indigenous people) can’t vote because THEY ARE NOT CITIZENS by the 14th amendment
1925 only Filipinos who served in the Navy for 3 years could vote
1952 People of Asian ancestry were eligible to become US citizens
1967 Interracial marriage became legal
1971 18-21 year olds could vote
Before and after the 1776 Declaration 1876of Independence Jews, Quakers, and Catholics were excluded from the declaration and could not run for office.
If you are a US citizen and 18 or over you should vote.