Historical
1420: China - Upon the death of the Ming emperor, the sSecond Ming Emperor moves the capital of China from Nanking to Peking
1420: England, France - Treaty of Troyes, France (under Philippe) signs a treaty with England (under Henry V) making Henry the king of both countries
1423: England, France, Scotland - Battle of Cravant, after a year of fighting, the English, under the command of John Plantagent, defeat the combined forces of France and Scotland
1424: England, Scotland - After being held in captivity since age 11, the English free James I King of Scotland age 29 after the Earl of Somerset pays 10,000 marks in ransom as a dowry for his daughter Jane, Jane and James are married and James is crowned King of Scotland
1424: France, Italy - Charles VIII King of France Invades Italy and forces Naples to surrender, then Alexander VI organizes the Holy League and forces Charles out of Italy
1428: England, France - War between France and England continues despite various agreements, in 1428 the English beseige Orleans and Joan of Arc, a young girl from Lorrain, is visited by Saint Michael saying that she will have visions and hear voices from God, that convince the French dauphin to provide her with a small army that liberates Orleans, this gives the French new confidence in their conflict with England
1431: France - Joan of Arc enters Comiegne outside Paris and is taken prisoner, held in a tower in Rouen and Charles VII makes no effort to assist her, in 1431 Joan is turned over to the former bishop of the of Beauvais Pierre Cauchon on the assurance she would be convicted of treason against God and is burned at the stake on May 30
1431: Thailand, Cambodia - The Thais capture Angkor, the capital of the Khmer, the Khmer Empire move their capital to the present site of the Cambodian capital of Phnom Penh
1435: England, France - Duke Philip of Burgundy, weary of his alliance with the English, signs a peace treaty with Charles VI which recognizes Charles as the one king of France who in turn promises to punish the murders of Philip's father, however, the English do not accept the peace treaty and warfare continues. Charles and Philip fight together and liberate Paris, a truce between Britain and France lasts thirteen years
1438: Peru - Inca Dynasty in Peru (it lasts until 1553) begins, Its founder is said to have been Pachacutec who rapidly expands the empire
1439: Italy, Turkey - Treaty between Roman Catholic Church and Eastern Orthodox Church
1444: Turkey - Battle of Varna, Murad the Ottoman sultan attacks on Its Belgrade but is repeled, encouraged by victory, the Christians, whose goal has been to drive the Ottomans from Europe, declare a new Crusade led by Hunyadi
1450: Germany - Johannes Gutenberg Invents the printing press which revolutionizes communication and education, allows the development of newspapers and reasonably priced books, the first product printed is the Guttenberg Bible