<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Earth History on Pitara Kids Network</title><link>https://www.pitara.com/tags/earth-history/</link><description>Recent content in Earth History on Pitara Kids Network</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Sat, 13 Jun 2026 21:46:31 +0530</lastBuildDate><atom:link href="https://www.pitara.com/tags/earth-history/index.xml" rel="self" type="application/rss+xml"/><item><title>All Human History is Just 10 Seconds Old!</title><link>https://www.pitara.com/science-for-kids/planet-earth-for-kids/all-human-history-is-just-10-seconds-old/</link><pubDate>Fri, 14 Dec 2001 05:37:22 +0000</pubDate><guid>https://www.pitara.com/science-for-kids/planet-earth-for-kids/all-human-history-is-just-10-seconds-old/</guid><description>&lt;p&gt;Look at the dial of a clock. Imagine that the 12 hours showing on the dial are equal to earth&amp;rsquo;s history of four-and-a-half billion years. Now, this is how the earth&amp;rsquo;s evolution happened&amp;hellip;&lt;/p&gt;
&lt;p&gt;We know very little about what happened in the first three hours of the earth&amp;rsquo;s existence. The first signs of life appeared in the form of bacteria when the earth was four hours old.&lt;/p&gt;
&lt;p&gt;Then came the first vertebrates (animals with skeletons). They were born when the earth was 10 hours and 35 minutes old. The huge dinosaurs arrived at 11 hours and 25 minutes and birds and mammals at 11 hours and 50 minutes.&lt;/p&gt;</description></item></channel></rss>