The world in 1523 AD — what happened that year

10 events the sources record for this year, grouped by region.

What happened

Altan Khan (俺答) invaded Datong — the first appearance of Altan in the source. (History of Ming (Mingshi), Annals 明史卷17 嘉靖二年)

Mạc Đăng Dung's faction crushed Trịnh Tuy at Thanh Hóa. (Đại Việt sử ký toàn thư 本紀卷之十五「'''癸未，統元二年（明嘉靖二年」)

Askia sends his younger brother Pari Yahya to Kojara; there Binkafarma Aliyamra dies (Tarikh al-Sudan (Chronicle of the Sudan) Houdas 1900 불역 장 XIII (houdas1900_fr_djvu.txt 줄 6381))

Francisco de Garay, governor of Jamaica, landed at Pánuco with 120 horses and many troops. (Cortés, Letters from Mexico Letter 4, MacNutt vol.2 OCR line 7525)
When Garay came to Tenochtitlan, Cortés welcomed him, and they reached an agreement under oath. (Cortés, Letters from Mexico Letter 4, MacNutt vol.2 OCR line 7894)
News came that 210 of Garay's men at Pánuco had been wiped out in a night attack. (Cortés, Letters from Mexico Letter 4, MacNutt vol.2 OCR line 8073)
Huáscar orders the governors of Anti, Colla and Cuntisuyu to gather troops quickly and come to Cusco. (Inca Garcilaso, Royal Commentaries of the Incas Libro IX cap. XXXIV (vol.3, l.3735))
Atahualpa's army defeats Huáscar's army; the Colla people hold back, and Huáscar's soldiers are said to be raw recruits. (Inca Garcilaso, Royal Commentaries of the Incas Libro IX cap. XXXV (vol.3, l.3810))
Atahualpa's army marches along the road, bringing the chiefs and inhabitants under submission. (Inca Garcilaso, Royal Commentaries of the Incas Libro IX cap. XXXVII (vol.3, l.4081))
Huáscar leaves Cusco once he is prepared and goes to Quipaipan, one league from Cusco, to fight. (Inca Garcilaso, Royal Commentaries of the Incas Libro IX cap. XXXVII (vol.3, l.4084))