Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Hawaii, Idaho, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New York, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wyoming: The original version of the holiday was in commemoration of George Washington's birthday.
Alabama, Arizona, Colorado, Connecticut, Georgia, Idaho, Illinois, Indiana, Maryland, Massachusetts, Missouri, Montana, Nebraska, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Utah, Virginia, West Virginia: This national holiday commemorates the exact date when Christopher Columbus first set foot in the Americas
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wyoming: Observed on November 11th to recall the end of World War I on that date in 1918
Arkansas, California, Delaware, Florida, Georgia, Illinois, Iowa, Kansas, Kentucky, Maine, Maryland, Michigan, Minnesota, Nebraska, Nevada, New Hampshire, New Mexico, North Carolina, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Washington, West Virginia: Whilst it is not an official holiday, the Day after Thanksgiving is given an a holiday by most employers
USA: Christmas celebrates the Nativity of Jesus which according to tradition took place on December 25th 1 BC
Notes
If a federal holiday falls on a Saturday, the preceding Friday is a holiday; if a holiday falls on a Sunday the following Monday is a holiday.
State holidays are holidays for the government and public sector in that state and many, but not all, private businesses will give employees the day off.