There is no doubt that penicillin should top our list. Sir Alexander Fleming is commonly the one who is recognized to discover it. One day when he was looking for a way to combat staphylococcus bacteria, he notices that molds can retard bacterial growth. Today, penicillin is considered as one of the greatest gift of serendipity because of its therapeutic and life-saving benefits.
These are just some of the accidents turned into miracle inventions. There are a lot of inventions that came into being without planning. Who knows? Maybe someday, you can invent something unintentionally that will change the world. Because sometimes it does not need a genius to invent, just someone who happens to be in the right place at the right time.