Henrietta Carstairs (1777/78 – after 1817) was a British mountaineer and nanny known for becoming the first person to climb the Sugarloaf Mountain in Rio de Janeiro, Brazil, in 1817.
Sugarloaf Mountain In 1817, Carstairs was the first person to ascend the Sugarloaf Mountain in Rio de Janeiro, Brazil. Upon reaching the summit, she placed a Union Jack there. Legend holds that a Portuguese national later replaced the Union Jack with a Portuguese flag.
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