History
The Bellcurve Project was a secret project set up by Captain America and run by Beast to develop a weapon which could remove anybody's abilities. After a successful test on Sandman, Beast lacked the resources to run the test again and so sent Spider-Man to obtain some from the Iron. After Spider-Man's return, Bellcurve was able to finish its work. After the truth about the Skrulls' infiltration, they decided to throw Bellcurve into the Divide and set it off to remove the Skrulls' abilities.[1]