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.

Independence Day, commonly known as the Fourth of July, is a federal holiday in the United States commemorating the adoption of the Declaration of Independence on July 4, 1776, declaring independence from the Kingdom of Great Britain. Independence Day is commonly associated with fireworks, parades, barbecues, carnivals, fairs, picnics, concerts, baseball games, family reunions, and political speeches and ceremonies, in addition to various other public and private events celebrating the history, government, and traditions of the United States. Independence Day is the national day of the United States.^[1][2][3]

During the American Revolution, the legal separation of the Thirteen Colonies from Great Britain occurred on July 2, 1776, when the Second Continental Congress voted to approve a resolution of independence that had been proposed in June by Richard Henry Lee of Virginia declaring the United States independent from Great Britain.^[4][5] After voting for independence, Congress turned its attention to the Declaration of Independence, a statement explaining this decision, which had been prepared by a Committee of Five, with Thomas Jefferson as its principal author. Congress debated and revised the Declaration, finally approving it on July 4. A day later, John Adams had written to his wife Abigail: