Soon, in many warm-weather regions, baseball came to be considered a major sport, approaching the level of football and basketball. And even non-warm weather schools started to recognize baseball's potential and began to put considerably more emphasis on it. Nebraska, Notre Dame, and Oregon State are three notable examples of cold (or rainy) weather schools with very successful programs. The first two made the College World Series when warm-weather schools placed major emphasis on baseball as well as had the advantage of playing earlier and more games because of favorable climates. Oregon State won back-to-back national championships in 2006 and 2007; at that time, archrival Oregon had been without baseball for a quarter-century, having dropped its program in 1981. Many credit the Beavers' success as a primary factor in the University of Oregon's later decision to revive baseball in 2009.