NATIONAL CREATE A VACUUM DAY. A space entirely devoid of all matter is a vacuum. On February 4 of every year, we are challenged to create one. A vacuum is created when the pressure inside a space is lower than the pressure outside the area.
Create a Vacuum Day. Create a Vacuum Day is celebrated on February 4th of each year. In everyday usage, vacuum is a volume of space that is essentially empty of matter, such that its gaseous pressure is much less than atmospheric pressure. The word comes from the Latin term for “empty”.
There is mail in your mailbox six days a week so let's take time out of our day to thank the mail person who is responsible for getting it there! Thank A Mail Carrier Day (also known as Thank a Mailman Day) is always observed on February 4th.
4. Fun Holiday – Thank Your Mailman Day. Thank Your Mailman Day is celebrated on February 4 every year. The unofficial holiday honors people who deliver mail or post directly to people's homes and places of business.