The fourth day of the fourth month of the year is April 4. Entry 4/04 was taken as the date of the unofficial holiday, Webmaster's Day. The fact is that when using a web application, you can quite often see an error with status code #404 (Not found).

On April 4, the Roman Catholic Church honors the memory of Saint Isidore of Seville, considered the patron saint of the Internet. This venerable husband deserved such an honorable position in the modern world because during his lifetime he was the smartest person and an extraordinary personality. He was declared the patron of the Internet in 2003 by Pope John Paul II himself.

Rats help humans in many studies; our genomes coincide with them by 90-95%. That is why so many interventions in human physiology are carried out only after experiments on these rodents. And therefore the rat deserves its day in our human calendar.

UN Holidays - International Day of Mine Awareness and Assistance in Mine Action

Carrots were eaten and used for healing 2,000 years ago by the ancient Greeks and Romans. It was considered an exquisite treat, so it was served only on holidays. International Carrot Day is celebrated on April 4 every year since 2013. The main idea of ​​International Carrot Day is to spread information about the benefits of this vegetable for the human body.

Every year on April 4, at the initiative of the Organization of Homeless and Stray Animals from the Netherlands, events and promotions are held that draw attention to the tragic fate of man's four-legged friends. There are about 600 million cats, dogs and other domesticated animals living outdoors in the world. World Stray Animals Day is intended to help them.

International holidays - International Piano Tuners Day

Human health depends on the ecology of the place of residence, regular physical activity, proper and balanced nutrition. Biochemist Charles King's isolation of pure vitamin C from lemon juice in the laboratory was an important event in human history. Registration of an organic compound with the formula C6H8O6 took place on April 4, 1932.

International holidays - Internet Day

Festival of purity and clarity Qing Ming in China (Ching Ming Festival)

Funny holidays - Jeep 4x4 Day

The holiday was named in memory of the holy martyr - Basil of Ancyra, revered on this day by Christian believers. Among the people, on Vasily’s day the sun became hotter, the remnants of snow dripped from the roofs, and the air became very warm. That is why they nicknamed Vasily according to the spring weather. The housewives of Vasily Kapelnik baked bread cakes, symbolizing the sun, and treated their households to them in the morning. Such a loaf was revered by the people, believing that it brought wealth and prosperity to the family.

Orthodox holidays on April 4:

Feast of the Icon of the Mother of God “Izborskaya”

Memorial Day of Hieromartyr Vasily of Ankyra

Memorial Day of St. Isaac of Dalmatia