At an early age, the Supreme Court Justice's mother instilled a strong work ethic in her daughter, encouraging her to strive for independence in a patriarchal society.
"My mother told me two things constantly. One was to be a lady, and the other was to be independent," Ginsburg once said.
In 1993, Ginsburg became the second woman to be appointed an Associate Justice of the Supreme Court of the United States, swearing the oath of office during Bill Clinton's presidency.
Despite recent bouts of ill health, having had surgery to remove cancerous nodules in December 2018, the pioneer remains dedicated to her profession, stating that she will "do this job as long as I can do it full steam".
As Ginsburg turns 86, have a read of 13 of her most inspirational quotes:
Several Twitter users have been sending Ginsburg well-wishes on her birthday.
"Happy 86th Birthday to Ruth Bader Ginsburg, who has spent her life fighting for equality. You are an inspiration to everyone and my personal hero," one person wrote.
"BIG happy birthday to Ruth Bader Ginsburg! My love and respect for such an incredible woman can’t adequately be put into words," another added.
"Here’s to many more years of fighting the good fight!"
A biopic documenting the early stages of Ginsburg's career, titled On the Basis of Sex, was released in 2018.
Starring Felicity Jones as Ginsburg and Armie Hammer as her husband, the late Martin David Ginsburg, the film depicts the then-attorney taking on a tax case that altered the way courts in the US consider gender discrimination.
A documentary about Ginsburg's life and career, called RBG, was premiered at the 2018 Sundance Film Festival.
The film went on to win Best Political Documentary at the Critics' Choice Documentary Awards, in addition to receiving several other award wins and nominations.