Who added an extra day to january, giving it 31 days instead of 30?

Discover • Lessons Watch video-based lessons organized by subject and age • Collections Find video-based lessons organized by theme • Insights Explore insights from TED-Ed community • Explorations Learn through interactive experiences created with other organizations • Blog Read articles and updates from TED-Ed • Our modern calendar is loosely based on the ancient Romans’ calendars. In the 8th century BCE, the Romans used the In around 45 B.C., The Gregorian calendar, our modern calendar, was proclaimed in 1582 by Watch these recommended TED-Ed Lessons: Every four years, we gain an extra calendar day. But why? Neil deGrasse Tyson explains the science behind the leap year. What causes the phases of the moon? The common incorrect answer is the shadow of the Earth. The phases of the moon are actually just a result of our perception of the moon's half-illuminated surface. When the moon does pass through Earth's shadow the result is a lunar eclipse. This can be spectacular as the moon turns a deep shade of red. Welcome to the world of Lucius Popidius Secundus, a 17-year old living in Rome in 73 AD. His life is a typical one of arranged marriages, coming-of-age festivals, and communal baths. Take a look at this exquisitely detailed lesson on life of a typical Roman teenager two thousand years ago. On March 15th, 44 BCE, Roman dictator Julius Caesar was assassinated by a group of about 60 of his own senators. Why did these self-titled Liberators want him dead? And why did Brutus,...

Nearly every four years, we add an extra day to the calendar in the form of February 29, also known as Leap Day. Put simply, these additional 24 hours are built into the calendar to ensure that it stays in line with the Earth’s movement around the Sun. While the modern calendar contains 365 days, the actual time it takes for Earth to orbit its star is slightly longer—roughly 365.2421 days. The difference might seem negligible, but over decades and centuries that missing quarter of a day per year can add up. To ensure consistency with the true astronomical year, it is necessary to periodically add in an extra day to make up the lost time and get the calendar back in synch with the heavens. 1. Many ancient calendars had entire leap months Many calendars, including the Hebrew, Chinese and Buddhist calendars, are lunisolar, meaning their dates indicate the position of the Moon as well as the position of Earth relative to the sun. Since there is a natural gap of roughly 11 days between a year as measured by lunar cycles and one measured by the Earth's orbit, such calendars periodically require the addition of extra months, known as intercalary or interstitial months, to keep them on track. Intercalary months, however, were not necessarily regular. Historians are still unclear as to how the early Romans kept track of their years, mostly because the Romans themselves may not have been entirely sure. It appears that the early Roman calendar consisted of ten months plus an ill-defi...

Not here in New York state in the town I live in they will allow you one day and that's the pharmacy choice the insurance company allows two days however New York state has a new law that you're not allowed to have any more than a 7-Day supply on hand at all times so if the pharmacy ads it up and you had them filled early 10 times you're not going to get it filled because you should have enough for an extra 10 days and to tell you the truth I don't think the pharmacy should be the one regulating when you can have your prescriptions Don't go to a different "name" Pharmacy try another location of your pharmacy. Pharmacists have a license and some of them are really TOOLS they have what you want and they know it. Just keep your drugs to 28 days and you will be fine I've been a Walgreens customer for 10 years and I have never had a problem. It's a state law in New York that a pharmacist must fill a honest script from a licensed Doctor. Hope this helps. Having a very difficult time with Walgreens in Florida. I've been in pain management for several years. Walgreens pharmacist says I cannot fill my prescriptions every 28 days and are making me wait 36 days to make up me previously filling at 28 days. How can this pharmacist get away with this ? It's just this 1 pharmacist that gives me a very difficult time. Dr says to fill every 28 days and pharmacist refuses to do this. I am 69 years old with substantial injuries to spine and the pharmacist at Walgreens harasses and punishes m...

A Leap Year is a year that has 366 days, instead of the usual 365 days. This happens every four years, when an extra day, February 29th, is added to the calendar. When is the next Leap Year? The following years are going to be Leap Years: 2024 2028 2032 2036 2040 2044 2048 2052 2056 2060 2064 2068 Why do we have Leap Years? The extra Leap Day is added to the calendar every four years so that our calendar stays synchronized with the astronomical seasons. If our calendar had the same amount of days every year, the calendar would eventually drift away from the events it is supposed to track and coincide with. The extra day corrects this discrepancy between the dating system and the solar system. This happens because the Earth's orbit around the Sun takes approximately 365.25 days. However, it is not possible to represent a quarter of a day in a calendar, so a Common Year in the Gregorian calendar has 365 days. As a result, it does not perfectly align with the solar year. This .25 difference is what gradually makes our calendar become out of sync, and over four years that extra day is added to realign the calendar and give Earth that additional time to do a full orbit around the Sun. If the Leap Year didn't exist, after 100 years of having .25 fewer days, the seasons would be off by 25 days, and the countries in the Northern Hemisphere such as the United States would experience Summer in February. How are Leap Years calculated? When the Gregorian calendar was established, the ...

I've found at my current job, our bonus structure does little to motivate our employees to actually meet or out-perform the goals that are being set for them. In general, the employees are very satisfied with the amount of pay that they receive. As a result of this, the goals that the organization is setting for receiving bonuses - currently valued at anywhere from 1-10% of salary for that quarter based on percentage of goals met - make little difference to them for the amount of effort it requires to achieve them (Essentially working an additional 10-15% to meet all of them). I personally am of the attitude that I could care less whether or not I receive this bonus, and have found I'm only interested in when such a bonus would actually be paid out when I'm told I will be receiving one. I think I'd be much more motivated if the bonus could be something non-monetary; For example, additional vacation days. Currently, we have a terrible vacation policy where all employees only have about 12 days of combined PTO (Sick time and vacation time combined) until they've had 3 years seniority, at which point it's increased a bit. This is something that's much more important to me, as the work-life balance here isn't great and I'd love to be able to take more time off. My question then, is the following: Can an employer pay employees a bonus in PTO / Vacation time, instead of money? I'm not asking if this is something an employer would / could do as a standard policy for everyone, but...