@natgeomag I’m shaking so much I can barely type. Thank you for featuring Avery! #transisbeautiful pic.twitter.com/R1FAw6ayBH

— Debi Jackson (@transgirl_mom) December 14, 2016

National Geographic created a historic moment when it featured nine-year-old transgender girl Avery Jackson on the cover of its January 2017 issue. This makes her the first transgender person to be on the cover of the magazine.

Avery’s mother Debi tweeted the cover with the caption, “I’m shaking so much I can barely type. Thank you for featuring Avery! #transisbeautiful.”

The cover shows Avery lounging in a chair with her quote, “The best thing about being a girl is, now I don’t have to pretend to be a boy.”

According to Indie Wire, the January 2017 issue is in correlation with National Geographic’s new documentary titled “Gender Revolution,” hosted by Katie Couric. The documentary will explore the complexities of gender identity.

Avery’s parents Debi and Tom are southern conservatives but have been outspoken about their support for their daughter. Debi gave a speech for the “Listen to your Mother” podcast about Avery’s gender identity, which received more than half a million views, and spoke with GLAAD as part of its “All Access” series about Avery.

Tom also wrote an essay for the New York Times about his support for Avery writing, “I love my daughter for who she is without preconditions.”

Avery herself has also talked about her gender story on Debi’s YouTube channel.

“When I was born, doctors said I was a boy, but I knew in my heart I was a girl,” Avery says. “Even though I was a girl, I was afraid to tell my mom and dad, because I thought they would not love me anymore or throw me out or stop giving me any food or anything.”