It lasted from 500 BCE to 400 BCE. At present (2015), that means from 2515 years ago until 2415 years ago.
See also:
520 years ago
The 1600s, or the 17th century, occurred from the year 1600 to 1699. As of 2023, that time period ended about 324 years ago, with the beginning of the century over 423 years ago.
almost all of them until about 25-50 years ago.
42 years ago
fourscore and seven years ago means 87 years ago
The fifth century began on January 1, 401 AD, and ended on December 31, 500 AD. To determine how many years ago the fifth century was, we need to subtract the end year (500 AD) from the current year. As of 2023, the fifth century was 1523 years ago.
The 19th century was the 1800's, so it was from 210 to 110 years ago.
The 12th century was the years 1101 through 1200. That means that it was at least 814 years ago, up to 913 years ago, as of 2014.
1400 of them.
2820
Ink was used for pens many years ago. It was used in China in probably the 23rd century.
1 century = 100 years The 25th Century BC includes all the years from 2500 BC to 2401 BC. Right now, as we write this, the year is 2011. The 25th Century BC was the period from 4,511 years ago to 4,412 years ago.
Since we're currently in the 21st century - 700 years ago.
The year 100 was the last year of the 1st century AD. As of the 4th of March 2015 that is just over 1914 years and 2 months ago.
100 years ago is 1909, therefore it is the 20th century.
520 years ago
The 1200s were the 13th century, from 1200 to 1299.