Wicca is a religion developed by the british Gerald Gardner in 1954.Wiccans worship the Horned God (which is not satan or other demon) and the Mother Goddess (or the Triple Goddess).Wicca is a religion which respects the nature,because they see divinity in it.For wiccans divinity is in all (mother,flower,kids etc.).Many wiccans believes in magic,witchcraft and they practice it,but not all witches are wiccans.Wicca teaches us to do everything we want but not to harm one.
Wiccans believes in the five elements (earth,fire,water,air and spirit) and they invoke it in their magical work and in circles.
Wiccans celebrate season festivals of the year which are known as "Sabbats".
Their festivals are:Yule,Imbolc,Ostara,Samhain (known by all as Halloween),Litha,Beltane,Lammas and Mabon.
Many wiccans believe in rencarnation.
So wicca is a modern,pagan religion very popular in our times.