Choose the next Federal Holiday

[*bfine32*]

As of today 12/29/2015 we have 10 Federal Holidays:

New Years Day
MLK Day
Washington's Birthday (not Presidents Day)
Memorial Day
Independence Day
Labor Day
Columbus Day
Veteran's Day
Thanksgiving Day
Christmas

Your goal is to expand it to 11. You can simply add 1 or replace up to 3 and add one.

You must explain why you added your Holiday and why you abolished one (if you do).