DIG THIS!   about Coriander/Cilanto:

Coriander was named after bedbugs because it reminded one of the unpleasant smell so similar to the nasty pest!  Thank goodness the smell changes to a pleasant citrus scent, getting more fragrant as they reach maturity. 

Coriander is used in modern medicine but mainly to cover the unpleasant taste of some compounds.  It also helps to calm an upset stomach caused by some medicines.