Helium.com | Sciences (Other) | Top ten greatest inventions of all time http://www.helium.com/knowledge/5223-top-ten-greatest-inventions-of-all-time.xml Helium.com > Sciences (Other) > Top ten greatest inventions of all time en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT Top ten inventions of all time Humans have been around for at least 120,000 years so there are plenty of inventions that will not make the top ten... http://www.helium.com/items/1673748-top-ten-greatest-inventions-ever Mon, 07 Dec 2009 04:53:26 The Top Ten Greatest Inventions Of All Time Music. I think of it as perhaps one of the most beautiful inventions of mankind. It is the universal l... http://www.helium.com/items/1672945-top-ten-greatest-inventions-of-all-time Sun, 06 Dec 2009 14:27:37