Kalendorario serves to find the day of the week from any date from the 17th to the 20th centuries, that is, over a period of 400 years and also the year, the month, as well as latitude and longitude from any point in the globe.
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Title: Universal Kalendorario of the Building Agency Domus, in honor of the glorious Aviators Gago Coutinho and Sacadura Cabral.