1376: Year

As of the start of 1376, the Gregorian calendar was 8 days ahead of the Julian calendar, which was the dominant calendar of the time.

• March – The peace treaty between England and France is extended until April of 1377.
• April 28 – The start of Good Parliament in England, so called because its members attempted to reform the corrupt Royal Council.
• June 7 – The dying Prince Edward summons his father Edward III and brother John of Gaunt and makes them swear to uphold the claim to the throne of his son Richard.
• June 8 – Edward, the Black Prince dies, becoming the first English Prince of Wales to not rule as king.
• July 10 – The Good Parliament is dissolved. At that time, it was the longest Parliament to have sat in England.
• August 12 – With the help of the Genoese, Byzantine co-emperor Andronicus IV Palaeologus invades Constantinople and dethrones his father, John V Palaeologus, as co-emperor. John V Palaeologus is taken prisoner.
• September – John of Gaunt summons religious reformer John Wycliffe to appear before the Royal Council to defend Gaunt from bishops who have become his enemies.
• Fall – John of Gaunt, through the Royal Council, proceeds to undo the work of the Good Parliament.
• December 25 – John of Gaunt presents his nephew, Prince Richard of Bordeaux, to the feudatories of the realm and swears to uphold Richard's right to succeed Edward III.
• Khan Qamar al-din of Mongolistan unsuccessfully invades Timur’s eastern province of Farghana.
• Timur leads his army against troops of the White Horde which have arrived at Sighnaq. However, winter sets in, preventing an immediate battle.
• Dmitri Donskoi of Moscow raids Mongol ruled Volga Bulgaria (now in Russia).
• Acamapichtli is elected Tlatoani of the Aztec empire after the death of Tenoch, the first Aztec ruler.
• Catherine of Siena visits Pope Gregory XI in Avignon to attempt to persuade him to make peace with Florence and move the Papacy back to Rome.
• Olaf III becomes King of Denmark after the death of his grandfather, Valdemar IV, in 1375.
• The city of Sredets in Bulgaria is renamed Sofia after the Church of St Sophia
• Mamluk Sultan of Egypt Nasir-ad-Din Shaban II is succeeded by Alah-ad-Din Ali.
• Qutbuddin succeeds his brother, Shahabuddin, as Sultan of Kashmir.

• December 25 – Geoffrey Chaucer goes abroad on secret state business in the company of Sir John Burley.

• 22nd July – Fabled date of the appearance of the Pied Piper of Hamelin.

• November 9 – Edmund Mortimer, English rebel (died 1409)
• Gihwa, Scholar in Korean Buddhism

• January 24 – Richard FitzAlan, 10th Earl of Arundel, English military leader
• June 8 – Edward, the Black Prince, son of King Edward III of England (born 1330)
• Simon Langham, Archbishop of Canterbury
• Tenoch, Aztec ruler