1443

1443 may refer to either the year in the Gregorian/Julian chronology or to the integer 1443 itself. In the calendar sense, 1443 is a common year in the Julian calendar, placing it in the middle of the 15th century, a period characterized by ongoing conflicts and shifting alliances across Europe, the Balkans, and parts of Asia.

As a year, 1443 sits within the broader historical context of late medieval and early Renaissance-era politics. The Balkans saw continued pressure from the expanding Ottoman Empire, while European powers in Central and Western Europe worked to manage frontier conflicts and diplomacy with neighboring states. In Asia, regional polities such as the Timurid and Ming realms were prominent in their respective zones, shaping trade routes, culture, and governance. The year falls between more widely documented turning points later in the 1440s, and it reflects a period of persistent, often protracted political and military maneuvering rather than a single defining event.

As a number, 1443 is a composite integer with the prime factorization 3 × 13 × 37. In Roman numerals it is written as MCDXLIII. The number is odd and not prime, and it is immediately consecutive to 1442 and followed by 1444.

See also: 1443 BC and 1443 AH.