"Solun Brothers" (). In the Czech Republic and Slovakia, the two brothers were originally commemorated on 9 March, but Pope Pius IX changed this date to 5 July for several reasons. Today, Saints Cyril and Methodius are revered there as national saints and their name day (5 July), "Sts Cyril and Methodius Day" is a national holiday in Czech Republic and Slovakia. In the Czech Republic it is celebrated as "Slavic Missionaries Cyril and Methodius Day" (Czech: Den slovanských věrozvěstů Cyrila a Metoděje); in Slovakia it is celebrated as "St. Cyril and Metod Day" (Slovak: Sviatok svätého Cyrila a Metoda). In Russia, it is celebrated on 24 May and is known as the "Slavonic Literature and Culture Day" (Russian: День славянской письменности и культуры), celebrating Slavonic culture and literature as well as the alphabet. Its celebration is ecclesiastical (11 May in the Church's Julian calendar). It is not a public holiday in Russia. The saints' feast day is celebrated by the Eastern Orthodox Church on 11 May and by the Roman Catholic Church and the Anglican Communion on 14 February as "Saints Cyril and Methodius Day". The Lutheran Churches of Western Christianity commemorate the two saints either on 14 February or 11 May. The Byzantine Rite Lutheran Churches celebrate Saints Cyril and Methodius Day on 24 May. Other commemoration The national library of Bulgaria in Sofia, Ss. Cyril and Methodius University of Skopje in the North Macedonia, and St. Cyril and St. Methodius University of Veliko Tarnovo in Bulgaria and in Trnava, Slovakia, bear the name of the two saints. Faculty of Theology at Palacký University in Olomouc (Czech Republic), bears the name "Saints Cyril and Methodius Faculty of Theology". In the United States, SS. Cyril and Methodius Seminary in Orchard Lake, Michigan, bears their name. The Brotherhood of Saints Cyril and Methodius established in 1846 was short-lived a pro-Ukrainian organization in the Russian Empire to preserve Ukrainian national identity. Saints Cyril and Methodius are the main patron saints of the Archdiocese of Ljubljana. Ljubljana Cathedral stands at Cyril and Methodius Square (). They are also patron saints of the Greek-Catholic Eparchy of Košice (Slovakia) and the Slovak Greek Catholic Eparchy of Toronto. St. Cyril Peak and St. Methodius Peak in the Tangra Mountains on Livingston Island, South Shetland Islands, in Antarctica are named for the brothers. Saint Cyril's remains are interred in a shrine-chapel within the Basilica di San