Leif Erikson Day 20

Do you know what holiday it is today?
We are used to the fact that we know only religious and public holidays and celebrate only them.
I found out about this only yesterday after visiting the our site.
It turns out that every day there are from 2 to 10 different holidays that surround us and make our lives happier.
Here is one of the holidays that will be today:


http://spearboard.com/member.php?u=431818
http://www.glaschat.ru/glas-f/member.php?318911-Sergqsq
http://forum.gokickoff.com/index.php?topic=88622.new#new
http://vnsharing.site/forum/member.php?u=2227102
http://forum.d-dub.com/member.php?445063-Viktorivec