It's celebrated on 1 April. It's a special day for jokes, humour and playing harmless tricks on people.

It is a cultural and religious event held on 17 March each year in Ireland.

It has been celebrated on 8 March sence 1977 as the day of women's rights and world peace.

It is the first day of a new year, 1 January.

It is dedicated to veterans and celebrates the victory over Nazi Germany in World War II.

It is a religious holiday that falls on the first Sunday after the Full Moon date in spring. That is when Catholics observe it.Eastern Orthodox churches have another date for event in April or May.

It is a traditional celebration in Belarus, Poland, Ukraine, and Russia during the night from 6 to 7 July.

These traditions came from the ancient Irish and Scottish festival called Samhain. Today it is annually on 31 October.

It is celebrated annually on the 14 February. It's dedicated to young people and all those in love.

In many countries this holiday is on 1 May.