heit ▁der ▁Spe isen ▁( Reg arding ▁the ▁Cho ice ▁and ▁Fre edom ▁of ▁Food s ), ▁in ▁which ▁he ▁argued , ▁from ▁the ▁basis ▁of ▁Martin ▁Luther ' s ▁doctrine ▁of ▁sol a ▁script ura , ▁that ▁" Christ ians ▁are ▁free ▁to ▁fast ▁or ▁not ▁to ▁fast ▁because ▁the ▁Bible ▁does ▁not ▁prohib it ▁the ▁e ating ▁of ▁meat ▁during ▁L ent ." ▁ ▁History ▁▁ ▁Ulrich ▁Zw ing li ▁was ▁a ▁past or ▁in ▁Zur ich , ▁who ▁was ▁dedicated ▁to ▁the ▁Re formation ▁ide ology ▁of ▁Martin ▁Luther . ▁His ▁first ▁r ift ▁with ▁the ▁established ▁religious ▁authorities ▁in ▁Switzerland ▁came ▁during ▁the ▁L enten ▁fast ▁of ▁ 1 5 2 2 , ▁when ▁he ▁was ▁present ▁during ▁the ▁e ating ▁of ▁sa us ages ▁at ▁the ▁house ▁of ▁Christoph ▁Fro sch auer , ▁a ▁printer ▁in ▁the ▁city . ▁ ▁According ▁to ▁William ▁Ros co e ▁Est ep , ▁Zw ing li ▁had ▁already ▁held ▁his ▁conv ict ions ▁for ▁some ▁time ▁before ▁the ▁incident . ▁In ▁March ▁ 1 5 2 2 , ▁he ▁was ▁invited ▁to ▁part ake ▁of ▁the ▁sa usage ▁supp er ▁that ▁Fro sch auer ▁served ▁not ▁only ▁to ▁his ▁workers , ▁who , ▁as ▁he ▁later ▁claimed , ▁ ▁were ▁exha usted ▁from ▁putting ▁out ▁the ▁new ▁edition ▁of ▁The ▁Ep ist les ▁of ▁Saint ▁Paul ▁but ▁also ▁to ▁various ▁dign itar ies ▁and ▁pri ests . ▁Because ▁the ▁e ating ▁of ▁meat ▁during ▁L ent ▁was ▁prohib ited , ▁the ▁event