Why Does the New Year Start on January 1?

Bychykhin_Olexandr/iStock via Getty Images
Bychykhin_Olexandr/iStock via Getty Images

Way back when, the Romans had a god named Janus. He was the god of doors and gates and had two faces — one looking forward and one looking back. Julius Caesar thought it would be appropriate for January, Janus' namesake month, to be the doorway to a new year, and when he created the Julian calendar, he made January 1 the first day of the year (this also put the calendar year in line with the consular year, as new consuls also took office that day).

For Caesar, the Julian calendar was a political tool and weapon. As the Roman armies conquered new lands, the Empire often gave its new subjects some freedom in retaining certain religious and social customs. After the calendar was created, though, it was used in every corner of the Empire, not just for consistency, but to remind all citizens of Roman authority and Caesar's power.

After Rome fell and Christianity spread through Europe, the celebration of the new year was seen as pagan (the Romans, after all, had observed the new year's first day by having in drunken orgies), so the first day of the year was moved to a more agreeable date to Christianize it. Some countries started their year on March 25, the day Christians commemorate the announcement to Mary that she miraculously was pregnant. Other countries used Christmas Day, December 25, and others used Easter Sunday, no matter what date it fell on. Often, this change only applied to the government calendar's. In common usage, January 1 was still the first day of the year, as regular non-clergy, non-royal folks didn't t see a need to change it.

Change the Date

This calendrical chaos worked for a while, but a frustrated pope would put an end to it during the Middle Ages. An error in Caesar's calendar had caused the Julian year to become misaligned with the solar year. By 1582, the difference had grown to 10 days. Over the years, the Spring Equinox (and, with it, Easter) kept getting moved up, and Pope Gregory XIII was tired of having to re-set the holiday. Gregory devised a new calendar that used a single leap day every four years to keep it aligned. He also restored January 1 as the first day of the year.

Most Catholic countries adopted the Gregorian calendar quickly, but the Protestant and Eastern Rite countries were a little more hesitant. The Protestants complained that the "Roman Antichrist" was trying to trick them into worshiping on the wrong days. The Eastern Rite churches wanted to maintain tradition, so some Eastern European countries kept the Julian calendar for centuries more. Russia didn't switch to the Gregorian calendar until after the 1917 revolution, and even today the Eastern Orthodox Church still follows either the traditional or revised Julian calendar to set its liturgical year.

Eventually the Protestant nations came around and switched to the Gregorian calendar. Most, though, changed the start of the year well before they adopted the whole thing. England, Ireland and the British colonies made January 1 the start of the year in early 1752 - Scotland had already switched about 150 years earlier - but waited until September to fully embrace the new calendar. The staggered move was perhaps symbolic, bringing the government calendar in line with the peoples' before bringing the nation's calendar in line the with Pope's.

What's the Difference Between Cement and Concrete?

Vladimir Kokorin/iStock via Getty Images
Vladimir Kokorin/iStock via Getty Images

Picture yourself walking down a city block. The sidewalk you follow may be obscured by shuffling feet and discarded gum, but it’s clearly made from something hard, smooth, and gray. What may be less clear is the proper name for that material: Is it concrete or cement? Is there even a real difference between the two words?

Though they’re often used interchangeably, concrete and cement describe different yet related elements of the blocks, flooring, and walls that make up many everyday structures. In simple terms, concrete is the name of the gray, gritty building material used in construction, and cement is an ingredient used in concrete.

Cement is a dry powder mixture that looks much different from the wet stuff poured out of so-called cement trucks. It’s made from minerals that have been crushed up and mixed together. Exactly what kind of minerals it’s made from varies: Limestone and clay are commonly used today, but anything from seashells to volcanic ash is suitable. After the ingredients are mixed together the first time, they’re fired in a kiln at 2642°F to form strong new compounds, then cooled, crushed, and combined again.

Cement
Cement
lior2/iStock via Getty Images

This mixture is useless on its own. Before it’s ready to be used in construction projects, the cement must be mixed with water and an aggregate, such as sand, to form a moldable paste. This substance is known as concrete. It fills whatever mold it’s poured into and quickly hardens into a solid, rock-like form, which is partly why it’s become the most widely-used building material on Earth.

So whether you’re etching your initials into a wet sidewalk slab, power-hosing your back patio, or admiring some Brutalist architecture, you’re dealing with concrete. But if you ever happen to be handling a chalky gray powder that hasn’t been mixed with water, cement is the correct label to use.

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Why Do You Stop Feeling Tired As Soon As You Climb Into Bed?

tommaso79/iStock via Getty Images
tommaso79/iStock via Getty Images

There are few situations more frustrating: After a day spent nodding off at your desk, on the train, and on your couch, you suddenly can't sleep the moment you crawl into bed. It's not that you aren't tired or have insomnia, necessarily. Like a curse designed just to torture you, the sleeplessness only seems to occur when you're in your own bed at home, a.k.a. the place where you'd prefer to do your sleeping.

This maddening problem isn't in your head. According to TIME, many people have more trouble falling asleep in their own beds than they do elsewhere thanks to a phenomenon called learned or conditioned arousal. Conditioned arousal develops when you inadvertently train your body to associate your bed with being awake. In many cases, this results from doing stimulating activities in bed. For instance: If you like to slip under the covers and spend 40 minutes watching Netflix before closing your eyes, you're teaching your brain that your bed isn't for sleeping. That means the next time your head hits the pillow, your body will respond by preparing for the next episode of Friends instead of releasing the chemicals that help you fall asleep. The same goes for scrolling through apps, eating, and even reading in bed.

Doing things that aren't sleeping in bed isn't the only way to develop conditioned arousal. If there are other factors keeping you up at night—like thoughts about your day, or that cup of coffee you had at 8 p.m.—they can lead to the same result. Your brain starts to associate being in bed with tossing and turning all night, so even if those mental and physical stimulants go away, the muscle memory of being awake in bed remains.

Conditioned arousal is a vicious cycle that can't be broken in one night. The only way to manage it, according to the American Psychological Association (APA), is to minimize behaviors that contribute to poor sleep habits and to reserve your bed for sleeping (though sex is OK, according to the APA).

If you're a nighttime scroller, browse apps in a different room before getting into bed, or skip checking your phone at the end of the day altogether. When you spend more than 20 minutes struggling to fall asleep in bed, get up and move to a different part of the house until you get sleepy again; this will stop your brain from strengthening the association between your bed and feeling restless. The results won't be instant, but by sticking to a new sleep routine, you should eventually train your body to follow healthier patterns.

Of course, combating conditioned arousal alone isn't always effective. In people with conditions like anxiety and insomnia, intrusive thoughts and genetic factors can prevent them from falling asleep even under ideal circumstances. In such cases, the help of a medical professional may be required to sleep more soundly.

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