Jan Hus (Czech pronunciation: [ˈjan ˈɦus] ( listen); c. 1369 – 6 July 1415), often referred to in English as John Hus or John Huss, was a Czech priest, philosopher, reformer, and master at Charles University in Prague. After John Wycliffe, the theorist of ecclesiastical Reformation, Hus is considered the first Church reformer (living prior to Luther, Calvin, and Zwingli).

He is famed for having been burned at the stake for heresy against the doctrines of the Catholic Church, including those on ecclesiology, the Eucharist, and other theological topics. Hus was a key predecessor to the Protestant movement of the sixteenth century, and his teachings had a strong influence on the states of Europe, most immediately in the approval for the existence of a reformist Bohemian religious denomination, and, more than a century later, on Martin Luther himself.^[1]

Statehood Day is an annual public holiday in Lithuania celebrated on July 6 to commemorate the coronation in 1253 of Mindaugas as the first and only King of Lithuania. The exact day of this event is disputable and was chosen according to the hypothesis of Edvardas Gudavičius, formulated in 1989. The day has officially been celebrated since 1991.

The festival of San Fermín' (or Sanfermines, Basque: Sanferminak) in the city of Pamplona (Navarre, Spain), is a deeply rooted celebration held annually from 12:00, 6 July, when the opening of the fiesta is marked by setting off the pyrotechnic chupinazo,^[1] to midnight 14 July, with the singing of the Pobre de Mí. While its most famous event is the encierro, or the running of the bulls, which happens at 8:00 am from July 7th to July 14th, the week long celebration involves many other traditional and folkloric events. It is known locally as Sanfermines and is held in honor of Saint Fermin, the co-patron of Navarre. Its events were central to the plot of The Sun Also Rises, by Ernest Hemingway, which brought it to the general attention of English-speaking people. It has become probably the most internationally renowned fiesta in Spain. Over 1,000,000 people come to watch this festival.

Fermin is said to have been the son of a Roman of senatorial rank in Pamplona in the 3rd century, who was converted to Christianity by Saint Honestus, a disciple of Saint Saturninus. According to tradition, he was baptised by Saturninus (in Navarre also known as Saint Cernin) at the spot now known as the "Small Well of Saint Cernin" ^[2][3] Fermin was ordained a priest in Toulouse and returned to Pamplona as its first bishop. On a later preaching voyage, Fermin was beheaded in Amiens, France; and is now considered a martyr in the Catholic Church.^[3] It is believed he died on September 25, AD 303. There is no written record of veneration in Pamplona of the Saint until the 12th century. Saint Fermin, as well as Saint Francis Xavier, are now the two patrons of Navarre.^[3] At Pamplona, Saint Fermin; is now sometimes said to have met his end by being dragged through the streets of Pamplona by bulls, a fate more commonly attributed to his mentor, Saturnin.

Saints Cyril and Methodius (Greek: Κύριλλος καὶ Μεθόδιος, Old Church Slavonic: Кѷриллъ и Меѳодїи^[more]) were Byzantine Greek brothers born in Thessaloniki in the 9th century.^{[3][4][5][6][7][8][9][10]} They were Christian missionaries among the Slavic peoples of the First Bulgarian Empire, Great Moravia, and Pannonia. Through their work they influenced the cultural development of all Slavs, for which they received the title "Apostles to the Slavs". They are credited with devising the Glagolitic alphabet, the first alphabet used to transcribe Old Church Slavonic.^[11] After their deaths, their pupils continued their missionary work among other Slavs. Both brothers are venerated in the Orthodox Church as saints with the title of "equal-to-apostles". In 1880, Pope Leo XIII introduced their feast into the calendar of the Roman Catholic Church. In 1980, Pope John Paul II declared them co-patron saints of Europe, together with Benedict of Nursia.^[12]

The two brothers were born in Thessaloniki – Cyril in 827–828 and Methodius in 815–820. Cyril was reputedly the youngest of seven brothers; he was born Constantine,^[13] but took the name Cyril upon becoming a monk shortly before his death,^[14][15][16] according to the "Vita Cyrilli" ("The Life of Cyril"). Their father was Leo, a droungarios of the Byzantine theme of Thessaloniki, and their mother was Maria, who may have been a Slav.^[17]

Youth Day is celebrated on first Sunday of July every year in Singapore.