THE SLENDERMAN

It is an alleged paranormal figure purported to have been in existence for centuries, covering a large geographic area. It's famous in Fear Dubh, Scotland, the Takkemann, and the German legen of Der cGgroBmann of Der Grosse Man. Slender appearnces in other many leyens of the world. He looks like a man with extremely long, slender arms and legs, also appears to have 4 to 8 long, black tentacles that protude from his back. The people describe his with a black suit, sometimes portrayed as pinstripe and long dress shoes, which are always shined a perfect, gleaming black. He sometimes wears a hat or a long flowing necktie or scarf. 

His abilities were kill childrens ,he can be found in sections of woods, and he also has been reported seen with large groups of childrens. He resides in forests and preys on childrens. 

These are two different historical references:

Romanian Mythology

In Romaian Mythology tells the legend of the Tall man , featuring this description which may have taken to refer to the Slender Man:

"The tall man stood in a clearing, dressed as a nobleman, all in black. Shadows lay over him, dark as a cloudy midnight. He had many arms, all long and boneless as snakes, all sharp as swords, and they writhed like worms on nails. He did not speak, but made his intentions known,"

Egyptian Hieroglyphs

With references to the "Thief of the Gods" or the "Thief of Kuk" becoming common place during the reign of Pharaoh Wazner. Hieroglyphic carvings representing the Thief were found in the pharaoh's tomb, who was rumored to have had some kind of encounter with the entity. They resemble a strange figure with upper limbs, one that has never been found in any other hieroglyph language.

I don't know other leyend couse I'm very coward, if I know other, I tell you.