its history
... that at different times in its history, West Chester, Pennsylvania, led the U.S. in production of peach trees and penicillin?
... that at different times in <b id="mwCRM"><a href="./History_of_West_Chester,_Pennsylvania" id="mwCRQ" rel="mw:WikiLink" title="History of West Chester, Pennsylvania">its history</a></b>, West Chester, Pennsylvania, led the U.S. in production of <a href="./Peach" id="mwCRU" rel="mw:WikiLink" title="Peach">peach</a> trees and <a href="./Penicillin" id="mwCRY" rel="mw:WikiLink" title="Penicillin">penicillin</a>?