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<div class='featuredimage'><img src='https://coinsnotebook.com/wp-content/uploads/century-time.jpg' alt='century time' /></div><br><h3>Quick facts about Centuries</h3>
By definition, centuries are defined as years 1-100.<br />
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The 20th Century started on 1 January 1901, not 1900. It ended on 31 December 2000.<br />
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Similarly, the 21st Century started on 1 January 2001, not 2000.<br />
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So 1st January 2000 was still in the 20th Century, although many of us welcomed in the 21st century at the time!<br />
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The 19th Century is from 1 January 1801 until 31 December 1900, so:<br />
<ul>
 	<li>A penny dated 1899 is 19th Century</li>
 	<li>A penny dated 1900 is 19th Century</li>
 	<li>A penny dated 1901 is 20th Century.</li>
</ul>
What about the first Century? That ran 1 to 100 too. Strangely, in the Anno Domini (AD) system which we use in the current Gregorian calendar, there is no year zero. You have year 1 BC and year 1 AD, but no year zero. In our calendar, 1 AD immediately follows 1 BC.<br />
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Astronomical year numbering does have a year zero as do some ISO standards, with previous years being negative, -1, -2, etc.

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