Misc: In 1452 First book published, Johann Guttenberg's---------- . ?

Questions

In what year was insulin first used to treat diabetes?

Lack of which chemical compound in the body is linked with Parkinsons disease?

What is the name of the Austrian monk who experimented with peas and is considered the founder of genetics?

What well known drug comes from the yellow cinchona plant?

If you suffer from ailurophobia what are you afraid of?