In October of 1987, Merck & Co., Inc.* committed to donating Mectizan—as much as needed, for as long as needed—with the goal to help control river blindness. Since then, many lessons have been learned and many milestones have been achieved. To celebrate the 35th anniversary of the donation, we created a monthly series of short videos to tell the Mectizan Donation Program’s story so far. Here is a compilation of all twelve videos.