 Coimbra and Porto claim to maintain the heritage of the real academic traditions, usually in contrast of new practices instituted in younger universities and higher education schools.An increasingly larger number of institutions organize alternative initiation events for the freshmen based on solidarity activities and community work – it is called "Solidarity Praxis" ("Praxe Solidária").The roots of the Praxe date back to the 14th century, when practiced by the clergy, which greatly influenced the design of the academic outfit, but it did not attain recognition until the practice spread to Coimbra, first being named the Investidas, in the 16th century, upon the establishment of the university.