Four years ago, Chris Calvey arrived to his first meeting of a UW-Madison atheists group to find only a select few nonbelievers. “It was a very small, weak group,” he said of the Atheists, Humanists and Agnostics, or AHA. Calvey knew the numbers suggesting that up to 9,000 Badgers were in his camp and set about finding ways to bring them together. Now, the UW-Madison student group attracts more than 100 to its annual start-of-school meeting, has an email list of 1,500 and stands poised to become by far the best funded group of nonbelievers on any U.S. campus, Calvey said.