Harmon Northrop Morse was the first to make Paracetamol, in the year 1878. Drugs made with Paracetamol became common in the 1950s. Today, these drugs are some of the most used, together with those containing salicylic acid or Ibuprofen. In the year 1977, Paracetamol was put on the List of Essential Medicines of the WHO.