Okay kiddo, Seneka Bibile was a man who lived a long time ago and was really smart about medicine. He wanted to make sure people could afford to get the medicine they need to stay healthy, so he came up with a plan. He noticed that some medicines were very similar to others but cost more just because they had a fancier name or were made by a different company. This made it hard for some people to afford the medicine they needed.
So, Seneka Bibile came up with a list of essential medicines that everyone should be able to get at a fair price. This list included things like painkillers, antibiotics to fight infections, and medicine to help with high blood pressure. He also made sure that the medicines on the list were safe and effective.
The idea of having a list of essential medicines was really popular and lots of other countries started making their own lists based on Seneka Bibile's work. Now, many people all over the world can get the medicine they need at a fair price thanks to Seneka Bibile and his idea to create a list of essential medicines.