An Act amending the Act of May 31, 1893 (P. L. 188, No. 138), entitled "An act designating the days and half days to be observed as legal holidays, and for the payment, acceptance and protesting of bills, notes, drafts, checks and other negotiable paper on such days," providing that the fifteenth day of January shall be known as Dr. Martin Luther King, Jr. Day and observed as a holiday; and providing for Presidents' Day and its observance as a holiday.