19thcentury 20thcentury biography catholicchurch catholiccollegestudents churchandsocialproblems collegestudents constitutionalhistory democracy history indians indiansofmexico judges laborlawsandlegislation labormovement mendozalópezyschwertfeger mexican mexico miguel modern moraceae painting philosophymendozalópezyschwertfeger politicalactivity politicalparties politicsandgovernment presidentialcandidates religion religiouslife representativegovernmentandrepresentation separationofpowers sepulchralmonuments sources strikesandlockouts symbolisminarchitecture teachers teachers'unions treatmentof universitiesandcolleges