Tonight people all over the world are celebrating Halloween by dressing up, “trick or treating” or watching horror movies. It´s the night of monsters, zombies, witches and many more creatures that terrify you.
The roots of this tradition are assumed to come from Celtic culture and came over to the USA as settlers moved over to the New World. Back in the 8th century the Celts celebrated the end of summer and cattle moving back into their stables. People also thought that this was the time when souls of the dead went back to their homes.
Halloween is not the only traditional holiday today though. It is also the start of Dia de los Muertos in Mexico, where people remember their ancestors who have passed away. This festival is celebrated from October 31st to November 2nd, when it finishes with great parades through the streets in Mexico.