Answer:
The dots refer to the number of days in one aspect of the Mesoamerican calendar.
Explanation:
U.S. Supreme Court Justice Earl Warren delivered the unanimous ruling in the landmark civil rights case Brown v. Board of Education of Topeka, Kansas. State-sanctioned segregation of public schools was a violation of the 14th Amendment and was therefore unconstitutional.
Good history research can be found on history archives. It’s a government website so it would be approved by teachers. I learned a lot from there and just studying :). Hope this helps.
Jan 17, 1706 - Apr 17, 1790 (age 84)
