Angelina Jolie’s Low-Key 2013 During Double Mastectomy Procedures: A Look Back

Angelina Jolie's announcement, via a New York Times op-ed piece, that she quietly underwent three months of medical procedures earlier this year to have a preventive double mastectomy was especially remarkable because she is one of the most photographed women in the world. However, much of her year has been spent out of the spotlight.

[Related: Angelina Jolie Reveals She Had Preventative Double Mastectomy]

While the actress and her fiancé, Brad Pitt, typically attend at least one of the major awards shows together, they skipped both the Academy Awards and Golden Globes in 2013. In fact, the mother of six attended only one industry event this year -- and that appearance, in February soon after she started her treatment, generated many headlines because it had been months since she had walked a red carpet. What no one knew at the time -- or when she appeared publicly to supporting her numerous humanitarian causes after that -- was that she was quietly undergoing the procedures after a blood test showed she had an 87 percent risk of breast cancer and a 50 percent risk of ovarian cancer.

[Related: Giuliana Rancic, Sheryl Crow, and More React to Angelina Jolie’s Double Mastectomy Announcement]

Additionally, where she was the talk of the 2012 Oscars because of the thigh-high leg slit she was rocking and turned heads just prior to that in a cream and red Versace dress at the Globes, her attire this year has been muted. She's worn conservative styles in shades of black, gray and brown.

Here's a look back at Jolie's last few months in the public eye…

February 2: Jolie begins the nearly three months of medical procedures that the mastectomies involved at the Pink Lotus Breast Center in Los Angeles.

February 10: Jolie attends the American Society of Cinematographers Outstanding Achievement Awards in Hollywood. At the event, she presents an award to Dean Semler, the director of photography on her directorial debut "In the Land of Blood and Honey." She briefly walks the red carpet, not appearing exactly exuberant, and then poses with Semler. We later noted she was dressed "pretty conservatively for the woman who gave us all that leg at last year's Oscars," adding, "Jolie was very demure in a long-sleeved cashmere wool cocktail dress designed by Atelier Versace and a simple ponytail."

February 14: Jolie and Pitt announce a new business venture -- they will be releasing their own wine. They don't do any press to promote the wine.

March 26: Jolie continues to support her humanitarian issues. Wearing a black pantsuit, the UNHCR Goodwill ambassador attends a ceremony in recognition of the Gisozi genocide, laying a wreath at the memorial in Kigali, Rwanda.

April 1: A rep for the star confirms that Jolie, without fanfare, opened an all-girls school in Afghanistan. There is no public ceremony for it.

April 4: Jolie makes a second red carpet appearance, attending the Women in the World gala in New York City. Showing off lighter locks, she gives a big smile as she heads into the event, wearing a roomy and flowing olive-colored Saint Laurent dress and a sheer black sheath. Inside, she gives a brief speech to honor Malala Yousafzai, a 15-year-old girl who was shot in Pakistan.

April 11: Jolie attends the G8 Foreign Ministers' conference in London. She dons a black dress and coat and wears pearls for the occasion. Her hair is pulled back in a bun during her speech.

April 14: Stepping out solo, Pitt appears at the MTV Movie Awards in Los Angeles to present Movie of the Year. He is in good spirits and is jovial, joking with fans during commercial breaks.

April 15: Pitt drops in at CinemaCon in Las Vegas to promote his upcoming film, "World War Z."

April 27: Jolie's three months of medical procedures conclude.

May 14: In a New York Times op-ed piece, Jolie drops the bombshell that she had a double mastectomy, noting that the decision was triggered in part by the death of her mother, Marcheline Bertrand, who passed away from cancer at the age of 56. In the article, Jolie noted that her chance of developing breast cancer dropped "from 87 percent to under 5 percent" and Pitt was "loving and supportive" during the procedures.

More Celebrity Features on Yahoo!: