Easter wasn't "established" by anyone so much as it just developed. It rises out of the Jewish Passover tradition and the ressurection story of Christ. The only regulation of Easter as a holiday comes from the First Council of Nicea in 325 in which they decreed: independence of the Jewish calendar and worldwide uniformity. So, as far as establishing anything related to Easter, only the Catholic church can be evidenced.
Easter has religious origins as it is a Christian holiday that celebrates the resurrection of Jesus Christ. However, it has also become a secular holiday with traditions such as Easter eggs and the Easter Bunny that are not tied to its religious significance.
A bank holiday isn't celebrating Easter and and Easter holiday is.
One such holiday is Easter.
Easter was declared as a national holiday
As Easter itself is always on a Sunday, it can't be a holiday. So in many places around the world Easter Monday is a holiday.
The next holiday after President's Day would be St. Patrick's Day or Easter.
easter
easter holiday
Easter
So it can follow Easter Sunday?
NO, Easter is a Holiday
2010 Easter is on the 4 of April