The independence issue has always been an acute problem for Slovakia until 1993, when the country finally gained it. Day of the Establishment of the Slovak Republic is the official holiday that marks the day of splitting Czechoslovakia into the Slovak Republic and the Czech Republic.
January 1 is New Year's Day in many countries around the world. It is the first day of the year on the Georgian and the Julian calendars that are used since 45 BC.
World Day of Peace set by the Roman Catholic Church is held annually on January 1 since 1968. It is often confused with the International Day of Peace that was introduced by UN. Although the holidays are different, they pursue the same things.
January 1 is the day when the copyrights expire and intellectual works enter into the public domain in most countries. This is the reason why January 1 has become Public Domain Day.