Wikipedia
Willkakuti
Willkakuti ( Aymara for Return of the Sun), Machaq Mara (Aymara for New Year), Mara T'aqa, Jach'a Laymi or Pacha Kuti (in Spanish named Año Nuevo Andino Amazónico (Andean-Amazonic New Year)) is an Aymara celebration in Bolivia, Chile and in the Southern Peru which commemorates the winter solstice in the Southern Hemisphere.
It was declared a national holiday in Bolivia in 2010 by the government of Evo Morales, despite opposition from the Christian right in Bolivia. In 2013, when the year 5521 of the Aymara calendar was marked, Willkakuti was celebrated in more than 200 places, among them Inkallaqta, Inka Raqay, Samaypata and Uyuni. Its major celebration hub is Tiwanaku.