emor ative ▁ceremony ▁every ▁year , ▁the ▁most ▁recent ▁of ▁which ▁was ▁held ▁at ▁the ▁Puerto ▁Rico ▁Department ▁of ▁State ▁headquarters ▁building , ▁the ▁" Ed ific io ▁de ▁la ▁Real ▁Int endencia ", ▁in ▁Old ▁San ▁Juan ▁with ▁the ▁mayor ▁of ▁Y au co , ▁Ab el ▁Naz ario , ▁as ▁the ▁ke yn ote ▁speaker ▁and ▁Supreme ▁Court ▁Associ ate ▁Justice ▁Ed g ardo ▁River a ▁Gar cia ▁in ▁charge ▁of ▁the ▁reading ▁of ▁the ▁Constitution ' s ▁P ream ble . ▁ ▁References ▁ ▁Category : Public ▁hol id ays ▁in ▁Puerto ▁Rico ▁Category : Const itution ▁days ▁Category : J uly ▁observ ances <0x0A> </s> ▁Fel ch ▁may ▁mean : ▁▁ ▁Fel ch ing , ▁when ▁sem en ▁or ▁other ▁flu ids ▁are ▁su ck ed ▁from ▁the ▁an us ▁ ▁Al phe us ▁Fel ch ▁( 1 8 0 4 – 1 8 9 6 ), ▁Governor ▁and ▁U . S . ▁Senator ▁from ▁Michigan ▁ ▁Fel ch ▁Township , ▁Michigan , ▁named ▁in ▁honor ▁of ▁Al phe us ▁Fel ch ▁ ▁See ▁also ▁Fel ch ville ▁( disambiguation ) ▁ ▁F let ch ▁( disambiguation ) <0x0A> </s> ▁Mil es ▁Sp encer ▁Kim ball ▁is ▁an ▁American ▁econom ist ▁who ▁is ▁currently ▁the ▁Eug ene ▁D . ▁E aton ▁Jr . ▁Professor ▁of ▁Econom ics ▁at ▁the ▁University ▁of ▁Colorado ▁B ould er . ▁From ▁ 1 9 8 7 ▁to ▁ 2 0 1 6 , ▁he ▁was ▁professor ▁of ▁econom ics ▁and ▁research ▁professor ▁of