Tsunamis: Facts About Killer Waves. The earthquake that generated the great Indian Ocean tsunami of 2004 is estimated to have released the energy of 23,000 Hiroshima-type atomic bombs, according to the U.S. Geological Survey (USGS).
The 1988 Happy Holiday Barbie is considered to be the first Collectible Barbie, although it wasn't originally planned that way. The dolls rapidly sold out and almost immediately began to command big prices on the secondary market.
Updated October 30, 2014. The Barbie doll, which first appeared on the world-stage in 1959, was invented by Ruth Handler (co-founder of Mattel) after she realized that her daughter liked to play with paper dolls that resembled grown-ups. Handler suggested making a three-dimensional doll that looked like an adult rather than a child.