Mexican handcrafted fireworks production is mostly concentrated in the State of Mexico in central Mexico. The self-declared fireworks capital of Mexico is Tultepec, just north of Mexico City. Although the main ingredient for fireworks, gunpowder, was brought by the conquistadors in the 16th century, fireworks became popular in Mexico in the 19th century. Today, it is Latin America’s second largest producer, almost entirely for domestic use, with products ranging from small firecrackers to large shells and frames for pyrotechnics called “castillos” (castles) and “toritos” (little bulls). The industry is artisanal, with production concentrated in family-owned workshops and small factories with a number operating illegally. The relatively informal production and sales of fireworks have made it dangerous with a number of notable accidents in from the late 1990s to the present, despite attempts to safety regulations.