Why Black Cats are Lucky....

As the owner of a black cat, I think they are lucky, but over the centuries their reputation has run the full gamut from being sacred in ancient Egypt, to satanic in medieval Europe.So where did it all start? How did black cats get a reputation for being lucky?
Firstly, let's go back four millennia, to 2,000 BC, and consider how rare black cats were. Wild cats were striped or spotted, to match the dappled sunlight. They originated either in forest environments as existed in the early history of North Africa, or Savannah type environment, which lead to more tawny colored coats. It was only a mutant allele, or gene, that led to the first solid coat such as pure black or white, at the same time as in Egypt black cats were becoming associated with the goddess Isis.

Isis was the goddess of earth's fertility and all living things (also the goddess of ships and sailors but more of this shortly.) She wore a black cloak, to symbolize night – which at the time was associated with calm and gentle love, rather than something demonic. Black cats were said to be the re-incarnation of Isis and revered as sacred.
In Isis' role as protector of ships and sailors, it was a logical step that black cats became the essential good luck charm on a sea voyage. Not only did they control the rodent population, but also invoked Isis' good will on the voyage. In addition, images of cats were carved near the ship's prow, for added luck. This superstition gained such strength that even as late as the 20th century, it was considered bad luck to sail without a ship's cat, and a ship's cat was mandatory on British Royal Naval vessels until 1975!
"A black cat I've heard it said,Can charm all ill awayAnd keep the house wherein she dwells,From fever's deadly sway."
Old English folk poem.