Baloons

A balloon is an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from materials such as rubber, latex, polychloroprene, or a nylon fabric, while some early balloons were made of dried animal bladders^{[citation needed]}. Some balloons are used for decorative purposes, while others are used for practical purposes such as ,meteorology, ,medical treatment, military defense, or transportation. A balloon's properties, including its low density and low cost, have led to a wide range of applications. The inventor of the rubber balloon, (the most common balloon) was Michael Faraday in 1824, via experiments with various gases.

source: www.wikipedia.com

St. Valentine

Saint Valentine (in Latin, Valentinus) is the name of several martyred saints of ancient Rome. The name "Valentine", derived from valens (worthy, strong, powerful), was popular in Late Antiquity. Of the Saint Valentine whose feast is on February 14, nothing is known except his name and that he was buried at the Via Flaminia north of Rome on February 14. It is even uncertain whether the feast of that day celebrates only one saint or more saints of the same name. For this reason this liturgical commemoration was not kept in the Catholic calendar of Saints for universal liturgical veneration as revised in 1969.  But "Martyr Valentinus the Presbyter and those with him at Rome" remains in the list of saints proposed for veneration by all Catholics.

In theEastern Orthodox Church, Saint Valentine the Presbyter is celebrated on July 6,and Hieromartyr Saint Valentine (Bishop of Interamna, Terni in Italy) is celebrated on July 30. Notwithstanding that, conventionally, members of the Greek Orthdox Church named Valentinos (male) or Valentina (female) celebrate their name on February 14, according to the Typikon of the Great Church of Christ (Τυπικὸν τῆς Μεγάλης τοῦ Χριστοῦ ᾽Εκκλησίας) Saint Valentine is not venerated not on July 6, nor on July 30. In fact, there exists no Saint Valentine in the Greek Orthodox Church.

source: www.wikipedia.com