History of Quarantine Liz James · May 29, 2020 · I love a good history lesson!…. I knew the story of Thieves, but not the origin of the word quarantine. #learningeveryday#ThanksYL#strongertogether Little trivia of the day: Did you ever think about why quarantine is called quarantine?This goes back to Italy in the 14th Century when they were fighting another epidemic/pandemic, the black death (bubonic plague). Yes, that is when the essential oil blend called the Marseilles water came up in history. That led to the development of the so important Thieves products by Young Living.But at that time Venice was flourishing as a sea port and the Venetians decided to keep arriving ships out of their ports for 40 days when to came from areas impacted by the plague. Quaranta giorni in Italian means 40 days and hence the name quarantine. Now you know more than most others.