Which happened first, the 100th anniversary of the founding of Baldwin City, or the designation of the battlefield as a National Historic Landmark?
return the  100th anniversary of   the   foundings of Baldwin City ;return the  designation of   the   battlefield as a National Historic Landmark ;return when  was  #1 ;return when  was  #2 ;return which is lowest of   #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']