When was CPR first developed?

Answer According to the American Heart Association, it developed cardiopulmonary resuscitation, or CPR, in 1960. CPR is based on techniques developed by Peter Safar and James Elam in 1956 for performing ... Read More »

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When was the first vaccine developed?

Early forms of vaccination were developed in ancient China as early as 200 B.C. Source:

When was the first headphone developed?

Britt Nicole wrote and recorded the song Headphones. It can be found on her "Lost Get Found" CD.

When was the first photo developed?

The first photo was developed by Joseph Nicephore Niepce in 1822. He used a camera obscura system with pewter plates to capture the image. He used vapors from iodine crystals to increase the contra... Read More »

When was the first hybrid car developed?

Three scientists developed and patented a hybrid drive train between the years of 1969 and 1971. The designs of Dr. Neal A. Richardson, Dr. Baruch Berman, and Dr. George H. Gelb are all used in mod... Read More »