The First Animal To Circle The Moon Was?

In 1968 Zond-5, an unmanned version of Soyuz 7K-L1 moon-flyby spacecraft was carried aloft by a Proton-K/D rocket; it became the first spacecraft to travel to the moon, circle it, and return back to Earth. via Pocket http://www.howtogeek.com/trivia/the-first-animal-to-circle-the-moon-was/