LONDON (AP) — For Ethel Caterham, the trick to a long life — and in her case, it really has been — is not to argue.

Caterham, who is 115, became the world’s oldest living person, according to the Gerontology Research Group, after Sister Inah Canabarro, a Brazilian nun and teacher, died on Wednesday at the tender age of 116.

“Never arguing with anyone, I listen and I do what I like,” she said from her nursing home in Surrey, southwest of London, on the secret to her longevity.

She was born on Aug. 21, 1909, in the village of Shipton Bellinger in the south of England, five years before the outbreak of World War I. She was the second youngest of eight siblings.

Travel has been in her blood, it’s clear. In 1927, at the age of 18, Caterham embarked on a journey to India, working as a nanny for a British family, where she stayed for three years before returning to England, according to the GRG.

She met her husband Norman, who was a major in the British army, at a dinner party in 1931, and they were stationed in Hong Kong and Gibraltar, the GRG said. They had two daughters whom they raised in the U.K. Norman died in 1976.

Hallmark Lakeview Luxury Care Home in Camberley, where Caterham is a resident, posted pictures of her cutting a cake and wearing a “115” tiara in a Facebook post on Thursday.

“Huge congratulations to Lakeview resident, Ethel on becoming the oldest person in the world! What an incredible milestone and a true testament to a life well-lived,” it said in an accompanying statement. “Your strength, spirit, and wisdom are an inspiration to us all. Here’s to celebrating your remarkable journey!”

The title of the oldest person ever is held by French woman Jeanne Calment, who lived to 122 years 164 days, according to Guinness World Records.