@Fisherman: All the days of the week are named after gods. If you use the argument that the Calendar is evidence forJesus' existence then you have to accept that the Calendar is also evidence for the existence of these other gods.
Cut and Paste from Interwebs:
Sunday comes from Old English “Sunnandæg," which is derived from a Germanic interpretation of the Latin dies solis, "sun's day." Germanic and Norse mythology personify the sun as a goddess named Sunna or Sól.
Monday likewise comes from Old English “Mōnandæg,” named after Máni, the Norse personification of the moon (and Sól's brother).
Tuesday comes from Old English “Tīwesdæg,” after Tiw, or Tyr, a one-handed Norse god of dueling. He is equated with Mars, the Roman war god.
Wednesday is "Wōden's day." Wōden, or Odin, was the ruler of the Norse gods' realm and associated with wisdom, magic, victory and death. The Romans connected Wōden to Mercury because they were both guides of souls after death. “Wednesday” comes from Old English “Wōdnesdæg.”
Thursday, "Thor's day," gets its English name after the hammer-wielding Norse god of thunder, strength and protection. The Roman god Jupiter, as well as being the king of gods, was the god of the sky and thunder. “Thursday” comes from Old English “Þūnresdæg.”
Friday is named after the wife of Odin. Some scholars say her name was Frigg; others say it was Freya; other scholars say Frigg and Freya were two separate goddesses. Whatever her name, she was often associated with Venus, the Roman goddess of love, beauty and fertility. “Friday” comes from Old English “Frīgedæg.”
As for Saturday, Germanic and Norse traditions didn’t assign any of their gods to this day of the week. They retained the Roman name instead. The English word “Saturday” comes from the Anglo-Saxon word “Sæturnesdæg,” which translates to “Saturn’s day.”