In the United States
National Parents Day -- Celebrating Parent Power
http://www.huffingtonpost.com/ben-austin/national-parents-day-celebrating-parent-power_b_3653347.htmlChung Hwan Kwak - Wikipedia
https://en.wikipedia.org/wiki/Chung_Hwan_KwakThe Tradition, Book One - Chapter 14 - Holy Days and Holidays
http://www.unification.net/tradition/tt1-14.html