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From thE EnD oF thE 1700s, kEntuCky hAD A spECiAl proBlEm: horsErACing. thErE wErEn’t mAny spECiAl trACks For horsErACing thEn, so pEoplE woulD tAkE thEir horsEs to thE mAin squArE AnD rACE thEm. this wAs quitE DAngErous For thE pEoplE who wErE wAlking ArounD! mEriwEthEr lEwisClArk, jr. EstABlishED thE kEntuCkyDErBy.AFtEr visitingEnglAnD AnD stuDyingEnglAnD’s rACEtrACks AnD rACEs, hE Built A rACEtrACk in louisvillE, kEntuCky, whiCh hE nAmEDChurChillDowns. on mAy 17, 1875, thE First kEntuCkyDErBy wAs hElD、until 1895, thE DistAnCE ArounD thE trACk wAs 1 milEs. sinCE 1895, thEDErBy trACk hAs BEEn 1 milEs. BEForE 1902, thEDErBy wAs vEry populAr, But it wAs not FinAnCiAlly suCCEssFul. it unDErwEnt somE ChAngEs in ownErship, AnD hAD its First proFit in 1903.By 1920, thEDErBy hAD BEComE thE BEst-known rACE in northAmEriCA、 toDAy, thE rACE AttrACts thE BEst thrEE-yEAr-olD horsEs From All ovEr thE Country. thE kEntuCkyDErBy is hElD EACh yEAr on thE First sAturDAy oF mAy. thE wholE wEEk is Full oF Fun ACtivitiEs. thE EvEnt AttrACts ovEr 100 000 visitors, AnD is wAtChED on tElEvision ArounD thE worlD、

in whiCh month oF A yEAr is thE kEntuCkyDErBy hElDA．mArCh.
B．sEptEmBEr.
C．mAy.
DECEmBEr.