How and when did Halloween start? It started over two thousand years ago with the celtic festival of Samhain.
This is where Halloween originated. The Celts believed that during Samhain the boundary dividing the living and dead became blurred.
Throughout the centuries the festivities have traveled and changed in the modern day celebration we now know as Halloween. King Halloween has a detailed article about how the origin of Halloween and how Samhain was transformed into the American holiday known as Halloween. It includes some interesting information about how in the United States Christianity has battled against this holiday at different times in history.
There is also great information about how Halloween has gone from being a community focused to a children focused holiday. I’m a fan and enjoyed reading up on the history of Halloween through the ages. Another resource to find information about the history of Halloween is at History.com.