also release a greenish blue dye when burned in the fire, then placed in cold water, and lastly rubbed together. Teca (Tectona grandis) produces a red dye when the leaves are wet and then rubbed together. Also, the rhizomes of the Yuquilla plant (Curcuma longa) can be smashed and rubbed together to form a yellow dye, which can become fixed and more vibrant with the addition of lime. A paste made from the Achiote fruit (Bixa orellana) forms an orange dye. Furthermore, the bark of the Nance tree (Byrsonima crassifolia) can be soaked in water to release a dark reddish-brown dye. Finally, one more important plant for dying purposes is known as tuyska in the Brunca language, but its scientific name is unknown. Its vibrant purple dye is released in the same way as Sacatinta: by boiling the leaves for several days. When Doris Stone visited the Brunca community in 1968, there was much less variety in natural dye sources. Back then, the traditional ecological knowledge (TEK) was not diverse, and the Brunca used the plants native to Costa Rica for their dyes. Nowadays, the Brunca have cultivated plant species that are native to Southeast Asia for dying purposes, such as Curcuma longa and Tectona grandis, illustrating that the TEK has spread drastically over the past 40 years. She discusses several of the sources still used today. These examples include Purpura patula, the Carbonero tree, and the upright indigo the Brunca call Tuika˝. She also mentions the use of the Sangrilla tree (Pterocarpus officinalis), also known as Padauk. However, Padauk is not used anymore due to the difficulty in preparing the dye. Also, another mollusk (Purpura kiosquiformia) used to be used for its purple dye, but the Brunca had to swim out to sea for these shells and kill them, while the P. patula releases its dye as a defense mechanism and does not need to be killed. Today, the red color that Padauk offered can be taken from the Nance tree or from Teca (teakwood). Traditional festivals The most famous of Boruca festivals is the three-day New Year's festival, called the "Juego de los Diablos" or the "Fiesta de los Diablitos," which runs from December 31 to January 2. The history behind the modern festival begins with the Spanish conquest. The early Spanish conquistadors called the indigenous people devils because they noticed that the indigenous were not baptized and