Unlike other months with 30 or 31 days, February is unique because it only has 28 days. Why does February only have 28 days? Here's a scientific explanation.
This unique 28-day phenomenon dates back to the Roman calendar during the reign of King Romulus, a famous Roman king who established things for the first time.
During his reign, two determined that a year had only 10 months, namely Martius, Aprilis, Maius, Junius, Quintilis, Sextilis, September, October, November, and December. January and February are not even on the calendar.
This policy changed when the second king of Rome, King Pompilius, ascended the throne. The calendar was based on the Lunar cycle of 355 days, then two new months were added between December and Martius.
The two months were none other than January and February, with 29 days each. After the calculations were carried out for several years, there were many oddities that made some seasons precisely out of sync with their typical months.
So 28 Days since Julius Caesar
When Julius Caesar took power in 45 AD, he rearranged everything according to the length of the year with respect to the Sun in one orbit.
This calendar adds 10 days to the year, making a month 30 and 31 days, except for February. The February date was deliberately set to 28 so that the total number of days in the calendar would be 365. This arrangement was in accordance with the seasonal system and is used to this day.
There is a Leap Year
February also has a Leap Year or Leap Year every four years, where the number of days is slightly increased, which is 366 days.
According to the calculations of astronomer Sosiogenes from Alexandria, the Earth orbits the Sun for 365.25 days in a year. To round it off, every 4 years an additional day is made.
The addition of one day is given in February. As a result, February which has 28 days in a normal year, will have 29 days in a Leap Year.
Incidentally, February this year is not a Leap Year. Uniquely, people born on February 29 or Leap Year have the title leapling or leaper. They celebrate a birthday every four years.