query: How old is Ruby?
passage: Ruby (programming language)
Ruby is a dynamic, interpreted, reflective, object-oriented, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan.
passage: List of Jewelpets and Sweetspets
The Jewelpet of Courage/Lucky and one of the three main mascots of the franchise. Ruby is a female white Japanese hare with a cherry jewel necklace and a cherryblossom flower on her right ear. Her birthdate is on July 29 and she is described as a polite and tidy character, who loves to watch cherry blossoms bloom. Usually her Jewel Power is increasing someone's luck, though this was changed when the anime first aired. She is airheaded, joyful, brash, happy and a big troublemaker, who sometimes wants to go to her own way, despite being told to stop at one place. She also acts like a little sister towards its partner, but sometimes has a hard time handling her antics. Despite all of this, she and its human partner always settle their differences and help each other out.