The Birthday of Martin Luther King, Jr. , often called Martin Luther King Day, is a United States holiday honoring the Reverend Dr. Martin Luther King, Jr., observed on the third Monday of January each year, around the time of King's birthday, January 15. It is the only United States federal holiday commemorating an African American and one of only four to commemorate an individual person.

Groundhog Day is a traditional festival celebrated in the United States and Canada on February 2. It is a cross-quarter day, midway between the Winter Solstice and the Vernal Equinox.

In traditional weather lore, if a groundhog emerges from its burrow on this day and fails to see its shadow because the weather is cloudy, winter will soon end. If the groundhog sees its shadow because the weather is bright and clear, it will be frightened and run back into its hole, and the winter will continue for six more weeks.