* Roman Empire - Second day of the Carmentalia in honor of Carmenta.
* Roman Catholic Church - Saint Ita, virgin, died January 15, 570.
* Malawi - John Chilembwe Day.
* North Korea - Korean Alphabet Day.
* United States - Traditionally, Martin Luther King Day.
* Kerala in India - Makaravilakku or Makara Sankranthy at Sabarimala.
* Jallikattu in South India.
* Wikipedia Day.
y en la wikipedia española:
* Fiesta del Niño Perdido en Huancavelica - Perú
* Día de John Chilembwe - Malawi
* Día del Maestro - Venezuela
* Santos Mauro y Macario - Santo Católico
* Santo Cristo de Esquipulas - Palmares - Costa Rica