Deletion of Progressive Rock in the 21st Century

Comment: The article now has the title Timeline of progressive rock. I think the article has potential to give some background information that would otherwise make the main Progressive rock article long and unwieldy. The article may currently lack some depth, and it had a bad title to start with, but there's certainly room to improve it instead of tossing it out together. Also, remember 
Stance: keep
Cited policy: Wikipedia:Please do not bite the newcomers (WP:BITE)