Historic start of the new year
Historic start of the new year is held on March 25. Lady Day in England, Wales, Ireland, and the future United States until the adoption of the Gregorian calendar in 1752. The year 1751 began on 25 March; the year 1752 began on 1 January. It is one of the four Quarter days in Ireland and England. This event in the third decade of the month March is annual. 
Help us
Help us 
It was named after Pope Gregory XIII. With the introduction of the Gregorian calendar, ten days were erased from time. The days between October 5 and October 14, 1582 have never existed. In order to make the transition to the Gregorian alendar, the day after October 4, 1582 was declared October 15th, thereby resetting the drift that had built up since the Julian calendar’s introduction. It's only 11 minutes different from the Julian calendar.
The system was first implemented in Italy, along with Spain and Portugal. The rest of Western Europe quickly followed suit, although Britain remained using the Julian calendar until 1752.
Similar holidays and events, festivals and interesting facts
Iranian New Year on March 21
Pisan New Year on March 25
Hindi New Year on March 30 (date for 2025);
Indonesian New Year on March 30
Thai New Year or Songkran in Thailand on April 13
Khmer New Year or Chol Chnam Thmey in Cambodia on April 14
Mahl New Year or Alathu Aharudhuvas on April 14 (Maldives and India's Lakshadweep and Kerala state);
Nepali New Year, or Navabarsha / Vaishak Ek on April 14 (South and Southeast Asian New Year);
Burmese New Year, or Thingyan in Myanmar on April 14
Lao New Year, or Songkan, or Pi Mai Lao in Laos on April 14