On Nov. 15, 1909. Edith Ritchie and Evelyn “Evie” Middleton were born on a farm in Scotland.  Mark Twain was still alive and William Howard Taft has recently replaced Teddy Roosevelt as president.

Guinness World Records has declared them the oldest living twins on Earth more than 102 years later.

The sisters, who live quietly at the Bonnyton House care home in Ellon, Aberdeenshire, Scotland, now find themselves at the center of the international spotlight after setting the memorable milestone.

The sisters shared with Guinness their three-pronged secret for longevity: “Simple living, hard work and a good husband.”

Their approach to life was established early on. The sisters, born with the last name Rennie, worked on farms before finding those good husbands.

Evelyn got hitched to William Middleton, and they had four children, 12 grandchildren, 26 great-grandchildren and three great-great grandchildren.

Her sister Edith tied the knot with Nathaniel Ritchie, and the couple had four children, nine grandchildren, 21 great grandchildren, and three-great-great grandchildren.

Until Tuesday, Lily Millward and Ena Pugh, also of the United Kingdom, were considered the oldest twins. They were born less than two months after Edith and Evelyn, on Jan. 4, 1910. Evelyn and Edith proved their longevity by providing Guinness with a birth certificate and other documentation.

A breathtaking century of history swirled around them, but the sisters have never left the United Kingdom.  The rest of the world, however, has finally come to them.

Guinness World Records Editor-in-Chief Craig Glenday said, “They’ve clearly benefited from good genes, and a solid life-long friendship that only twins can truly understand.”