1420s

The 1420s was a decade that began on 1 January 1420 and ended on 31 December 1429. It is distinct from the decade known as the 143th decade which began on January 1, 1421 and ended on December 31, 1430.

• Masaccio and Masolino paint the Brancacci Chapel, in Florence, Italy.
• Brunelleschi designs the church of Church of San Lorenzo, Florence.
• Joan of Arc leads the army of France.
• May 21: Treaty of Troyes With the Burgundian faction dominant in France, King Charles VI of France acknowledges Henry V of England as his heir, and as virtual ruler of most of France^[1]
• June 2: Catherine of Valois marries King Henry V of England ^[2]
• September 1: a 9.4 M_S-strong earthquake shakes Chile's Atacama Region causing tsunamis in Chile as well as Hawaii and Japan.^[3][4]

1. ↑ Arthur Hassall (1919). France, Mediaeval and Modern: A History. Clarendon Press. p. 64. ISBN 978-0-598-86435-2. {{cite book}}: ISBN / Date incompatibility (help)
2. ↑ Keith Dockray (2004). Henry V. Tempus. p. 185. ISBN 978-0-7524-3046-1.
3. ↑ Guzmán, L. (February 14, 2019). "Encuentran registros de megaterremoto ocurrido hace seis siglos en el norte de Chile". El Mercurio (in Spanish). Santiago, Chile. Retrieved June 8, 2019.
4. ↑ Manuel Abad, Tatiana Izquierdo, Miguel Cáceres, Enrique Bernárdez and Joaquín Rodríguez‐Vidal (2018). Coastal boulder deposit as evidence of an ocean‐wide prehistoric tsunami originated on the Atacama Desert coast (northern Chile). Sedimentology. Publication: december, 13th, 2018. https://doi.org/10.1111/sed.12570