Peninsula reporter Zhang Lei.
Today is February 29, 2024, and it is an extra day to give away in the leap year "benefits" of the Chinese lunar calendar. Leap years occur every four years, and people born on February 29 of leap years often have their own characteristics for their birthdays, and they can only wait four years for their birthdays on the solar calendar.
**Find a question type in one of the exercises that is relevant to this.
Math teacher: This elementary school math problem is now non-mainstream People born in the 70s and 80s of the last century, when they encounter a leap year in elementary school, they will encounter such a question type: how old is someone this year, his birthday is February 29, how many birthdays has he had this year?
The answer to this question has changed over time, is there still this question today?
On the morning of February 29, the Peninsula reporter contacted a mathematics teacher from the second primary school on Ningxia Road, Qingdao City, a post-80s native of Qingdao.
**Tell the Peninsula reporter that he did this type of question when he was in elementary school and had a certain impression. **Introduction, "Now in the conventional question type of primary school mathematics, it is rare to see this problem, and occasionally it appears when improving and solving practical problems after class, but it is not very common."
Post-80s white-collar workers: choose the lunar calendar to celebrate their birthday when they grow up "I was very excited to do this question when I was a child, because I was born on February 29, and my classmates were very envious that I was born on this day", Ms. Liu, who was born on February 29, 1980, is engaged in accounting work in a state-owned enterprise in the city.
This question is not difficult to do, but it can stump many people back then, subtract the age from the year of the year, get the year of birth, and then divide by four is the answer. For example, I was born on this day, and every four years from the year I was born, there are a few fours for the whole year," said Ms. Liu, who did well in math when she was in school.
When I get older and older, after participating in work and getting married and having children, like many middle-aged people, I am becoming more and more "improvised" about my birthday, and I will not pay special attention to it because my birthday is February 29, once every four years, work and life, and educating children is the main theme of people of this age.
I was so busy that I forgot that I was going to have a birthday, and I only remembered it after reading the desk calendar of the day", but Ms. Liu also said, "Sometimes the whole family also thinks of their birthday, even if it is not in a leap year, I celebrate my birthday according to the lunar calendar, and this day is every year."
This year coincides with the 1996 solar calendar
The reporter found the commemorative plate from 1996.
The reporter inquired about the relevant information, playing for the American Professional Basketball League, Indiana Pacers star Tyrese Haliburton was born on February 29, 2000, and there are many celebrities in the world who were born on this day.
When I searched, I made another discovery: the solar calendars of 2024 and 1996 are exactly the same. The Peninsula reporter found a 1996 disc souvenir, and after careful checking, it really coincided with this year's solar calendar, but the lunar calendar is still different, for example, the Spring Festival in 1996 is on March 4, and the Lantern Festival in 2024 is on February 24.
A while ago, the 1996 wall calendar was very expensive and in great demand," a Qingdao collector told reporters.
This year and 1996's New Year's Day are both Mondays, and both are leap years, and the Gregorian calendar is the same but the lunar calendar is different. It is not uncommon for leap year calendars to be identical, and every 28-year cycle that goes through them, the leap year calendars will be exactly the same. And so on, the calendar for any year with a 28-year difference is exactly the same. He said.
According to this law, the next time will be the same as this year, and the solar calendar will be the same in 2052.