Rivers are the most important mechanism for maintaining life on earth. Thanks to the waterways of the earth, flora and fauna exist on our planet. With the advent of civilization, many rivers have become dry, their beds have been changed, and the waters are polluted with industrial waste. To prevent this, conservationists created a holiday called River Day.

Most people first learned about Pi in high school and know it as 3.14159, but modern mathematicians have calculated it to within a trillion digits. The world record for memorizing the digits of Pi is 67,890 digits. The cryptic value (the Greek letter "π") is a symbol used in mathematics and represents a constant - the ratio of the circumference of a circle to its diameter.

This is one of the funniest holidays, which helps not only to gain new knowledge, but also to lift your spirits. To make it memorable for a long time, you need to try to ask as many questions as possible to your friends and family, and also find suitable answers when they ask. This should be quite fun.

The inventor of the VCR was the Russian engineer Alexander Matveevich Ponyatov, who emigrated to the USA. On March 14, 1956, in Chicago, the Ampex company, founded by Poniatov, presented the world's first video recorder. March 14 marks the birthday of the VCR - a holiday well known in narrow circles of connoisseurs who still remember what it is.

Sandwich is one of the most popular snacks, recipes for which are present in the national cuisines of many countries. It is eaten on the run, washed down with coffee for breakfast and taken on a picnic. March 14 marks the birthday of a simple but delicious snack - a sandwich.

Wide revelry - Razgulay (4th day of Maslenitsa week)

World Kidney Day

International School Meals Day

Estonian holidays - Mother Language Day (Emakeelepaev)

Japanese Holidays - White Day

Little Ovsen was celebrated very widely, with festivities, chants and round dances. Ovsen was popularly considered the brother of Kolyada. He cleared the way for people from the winter evil spirits, and also began not only the day, but also the whole year, full of troubles. There was a popular belief that Ovsen came riding on a horse and brought the New Year with him.

The name of the holiday is partly taken from the name of the Christian martyr Evdokia Iliopolis, revered by the church on this day. According to the old style of the calendar, people celebrated the arrival of spring on Evdokia. She was called Whistler because of the beginning of the spring winds, which sometimes sounded like whistling. Women on Evdokia baked cookies in the shape of larks or swallows.

Orthodox holidays on March 14:

Memorial Day of the Venerable Martyr Evdokia Iliopolskaya

Orthodox Book Day