Final answer:
Memorial Day was initially observed on May 30, with historical importance for marginalized groups.
Explanation:
Memorial Day was originally observed on May 30. On May 28, 1865, the first Memorial Day occurred in Charleston, South Carolina, when African Americans honored dead Union soldiers. This day holds historical significance in American history, especially for marginalized groups.
Learn more about Memorial Day observance here:
https://brainly.com/question/13662447
