The G-series of nerve gas was the first class of nerve gas to be ever discovered. Its discovery was a mistake made by Gerhard Schrader and his research team when they were trying to work on IG Farben in 1936 in Germany. Instead of making an insecticide, they ended up making a potent nerve gas, the Tabun. Schrader also went on to discover the famous Sarin chemical later on. His experiments concluded that the Sarin gas effects were ten times worse than Tabun.Soman, another nerve gas was discovered by Richard Kuhn while Cyclosarin was discovered during the WW II.