your dates are a little out woody, santa claus is 1900 century.
The most important single source for our modern day version of Santa Claus comes from the Christmas poem A Visit From St. Nicholas( also known as The Night Before Christmas) by Clement C. Moore. Written for his children in 1823, the family poem was later published for the general public and included what became the now famous picture of Santa Claus by Thomas Nast
the origins, of the tooth fairy goes back as far as the middle ages, viking had a tooth fee which was given to children.
and you seem to like caeser so.
Was Jesus Christus really the deified Julius Caesar?
The Italian linguist Francesco Carotta claims in his book War Jesus Caesar? 2000 Jahre Anbetung einer Kopie (Was Jesus Casar? 2000 years of worship of a copy, Wilhelm Goldmann Verlag, München) that Jesus was no more than a copy of the deified Julius Caesar! Caesar was murdered in 44 BC and later deified by Emperor Augustus. A great temple was built for him on the Forum Romanum. The picture on the left has been copied from an aureus (gold coin) of Octavian (the later Emperor Augustus). It represents the temple of Divus Julius (the deified Julius). His cult was especially popular in the eastern part of the Roman Empire and suddenly stopped in the last quarter of the first century AD, when Christianity became popular. The Christians are first mentioned (and persecuted) in the time of Emperor Nero (54-68 AD), the last emperor of the Julian-Claudian house which descended from Caesar. Then came Emperor Vespasian, a general who had crushed the Jewish rebellion. Josephus, a rebel leader who was captured by Vespasian, saved his life by predicting that Vespasian would become emperor. When that did happen, he was freed and added, as usual, the name of his former master Flavius Vespasian to his own. Josephus also plays a part in my stories.
Is this a likely theory? I haven't read this book either, but it seems very unlikely that Jesus never existed at all. I could imagine that Caesar became a kind of oriental fertility god and that Jesus later took over this function. In the Shiite Islam Ali, who was also murdered, took over this character in turn. When the Caesar cult was abolished by Vespasian - if he did that - it must have left a vacuum. I can imagine that under these circumstances another murder victim - Jesus - took over the empty place. It is possible that at this time hardly anything was known about the real Jesus and that elements from Caesar's life were woven into the biography of Jesus. It is known that the birth story of Moses was derived from the story about a Mesopotamian king. In my opinion other elements are derived from the life of Pharaoh Akhnaten.
Caesar regarded himself as a son of Venus, not only metaphorically because he seduced a lot of married women, but also literally. Temples of Venus and Aphrodite were often converted into churches of the Holy Virgin. The poet Virgil, who lived in time time of Emperor Augustus, alludes in one of his poems to a kind of Messiah. Before Vespasian became emperor it was widely believed that somebody from the east would come to rule the world. This contributed to the outbreak of the Jewish revolt.
Julius Caesar was popular among the Jews, so much is certain. Cleopatra felt betrayed by the Jews in Alexandria, who sided with Caesar. Suetonius writes that countless foreigners mourned at his funeral, especially the Jews, who kept wailing for nights on end (Caesar, 84). He suggests that Caesar may have ignored all warnings and deliberately chosen for martyrdom. ok
Many things in the Gospels also occur in the biographies of Caesar, writes Carotta. Originally the Christians were called chrestiani by Tacitus in stead of christiani. Suetonius writes that Jews in Rome started riots at the instigation of Chrestus (Claudius, 25) but that may have been a Jewish leader who claimed to be the Messiah and not some Christian. The Greek word chrestos means 'good, mild, favorable', while christos means 'anointed'. Perhaps that means nothing, because Tacitus and Suetonius thought that 'the anointed one' made no sense and was probably a mistake for 'the good one'. Jesus was called 'the anointed one'. The crucifiction is, according to Carotta, the cremation of Caesar. The Sanhedrin (the council of Jewish scriptural scholars) was the Senate. Carotta also has a theory about Paul.
http://home-3.tiscali.nl/~meester7/engjesus.html