In what year was the album “Evolution” released by 인피니트?

In what year was the album “Evolution” released by 인피니트?: The album “Evolution” was released in 2011 by 인피니트, featuring 6 tracks.
What is the most successful song from the album “Evolution” by 인피니트?: “BTD (Before The Dawn)” is the biggest hit from the album “Evolution” by 인피니트.

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