With Kourtney Kardashian just announcing that she will have her second child, this all just adds up to the already long list of momentous happenings with this famous socialite clan this 2011.

From the controversial weddings and impulsive divorces and down to the ballroom events and babies, it cannot be denied that it was totally a big year for all the Kardashians. Here we take the ride on the roller coaster timeline of their life's events this year.

Kim and Kris engagement. On May 25, Kris Humphries proposed to Kim Kardashian on bended knee and spelled out 'Will you marry me?' with the use of rose petals.

Kardashian Kollection. On August 17, sisters Khloe, Kourtney and Kim introduced their newest clothing line called the Kardashian Kollection.

Kim and Kris Wedding. By August 20, Kim and Kris exchanged wedding vows in Montecito, California where she wore a luxurious Vera Wang gown.

Kim's 'Turn It Up.' August 29 is the date of the leaked music video of Kim called 'Turn It Up.'

Rob Joins 'Dancing With The Stars.' Little brother Rob was forced by his mom to join the hit show's Season 13 last August 29.

Kylie's Runway Debut. On September 12, Kylie Jenner made her debut on the runway with the entire clan arriving in full regal to support their little sister.

The Divorce. After 72 days of marriage, Kim divorces Kris Humphries on October 31.

Rob Loses on Dancing. On November 22, Rob loses the title for the dancing hit show.

Kylie and Cody. On November 27, young Kylie Jenner was spotted hanging out with the Bieber version of Australia, Cody Simpson.

The Pantless Glamour Cover. Kourtney, Kim and Khloe once again poses for the prestigious magazine with no signs yet of Kourtney's baby bump.

The Second Child Announcement. And yes, most recently, Kourtney announces she is pregnant with her second child and Mason will soon be a big brother.

Check out more pictures of these highlights in the slideshow


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