Winter Solstice

Alban Arthan (Welsh)
Blue Christmas (holiday) (Western Christian)
Brumalia (Ancient Rome)
Dongzhi Festival (East Asia)
Korochun (Slavic)
Sanghamitta Day (Theravada Buddhism)
Shalako (Zuni)
Yaldā (Iran)
Yule in the Northern Hemisphere (Neopagan)
Ziemassvētki (ancient Latvia)