Discusión:Cirilo y Metodio

In 862 they were invited by prince Rastislav to propagate Christianity in the Slavic language in Great Moravia, which they did until their deaths in 869 (Cyril in Rome) and 885 (Methodius in Great Moravia) respectively. For the purpose of this mission, they devised the Glagolitic alphabet used for Slavonic manuscripts before the development of the Cyrillic, an alphabet derived from Glagolitic and the Greek alphabet, that with small modifications is still used in a number of Slavic languages. They also translated Christian texts for Slavs into the language that is now called Old Church Slavonic and wrote the first Slavic Civil Code, which was used in Great Moravia. The language derived from Old Church Slavonic, known as Church Slavonic, is still used in liturgy by several Eastern Orthodox churches. Both brothers are canonized in Eastern Orthodoxy as "equal-to-apostles" and were celebrated by the Roman Catholic Church in 1880. Pope John Paul II promoted them to Patrons of Europe in 1980.

The common commemoration day for the two apostles in the Catholic, Evangelical Lutheran and Anglican Church is on February 14. The Eastern Orthodox Church has a commemoration day for Cyril on February 14 and for both brothers on May 11.

In the Czech lands and Slovakia, the two brothers were originally commemorated on March 9, but Pope Pius IX changed this date to July 5. Today, the St. Cyril and Methodius Day, believed to be the date of the arrival of the two brothers to Great Moravia in 863, is a national holiday both in the Czech Republic and Slovakia.

The SS. Cyril and Methodius Day on May 24, also known as 'Day of Bulgarian Education and Culture and the Slavic Alphabet' (local name: Ден на българската култура и просвета и славянската писменост, "Den na bulgarskata kultura i prosveta i slavyanskata pismenost"), is a national holiday in Bulgaria celebrating Bulgarian culture and the invention of the Slavic (Glagolitic) alphabet by the brothers Saints Cyril and Methodius.