Abraham Lincon's birthday:
  Thursday, February 12, 2015 
  Friday, February 12, 2016 
  Sunday, February 12, 2017 
  Monday, February 12, 2018 
  Tuesday, February 12, 2019 
  Wednesday, February 12, 2020 

Start of U.S. Supreme Court Session (1st Monday in October):
  Monday, October 5, 2015 
  Monday, October 3, 2016 
  Monday, October 2, 2017 
  Monday, October 1, 2018 
  Monday, October 7, 2019 
  Monday, October 5, 2020