What is the Common Era?
We today use what is called the Gregorian calendar, named after Pope Gregory XIII, who introduced it in 1582. Nowadays, you sometimes encounter a …
Read MoreWe today use what is called the Gregorian calendar, named after Pope Gregory XIII, who introduced it in 1582. Nowadays, you sometimes encounter a …
Read MoreMore than 22 million Americans have contracted the virus. Get the latest headlines from the Coronavirus Press today.