Saint Valentine in Malta. Some Traditionalist Catholics observe earlier calendars of the Roman Rite, in which Saint Valentine was celebrated as a Simple Feast until 1955, when Pope Pius XII reduced the mention of him to a commemoration in the Mass of the day, a position it kept in the General Roman Calendar of 1960 incorporated in the 1962 edition of the Roman Missal, use of which, as an extraordinary form of the Roman Rite, is still authorized in accordance with Pope Benedict XVI's 2007 motu proprio "Summorum Pontificum". February 14 is also celebrated as St. Valentine's Day in other Christian Churches;
Basil Valentine Valentine is a widely reproduced alchemical book attributed to Basil Valentine, first published in 1599. It contains two parts, the second of which houses the twelve keys. These were accompanied by woodcut engravings from later publications in the early seventeenth century. Numerous publications on alchemy in Latin and German were published under the name Basil Valentine. They have been translated into many European languages, including English, French, Russian and others. The following list is roughly organized in order of translation or publication date. Basil Valentine Basil Valentine is the Anglicised version of the name Basilius Valentinus, ostensibly a 15th-century alchemist,