Ethel Caterham is marking a significant milestone as the world's oldest living person. She is turning 117 years old. This notable birthday is being celebrated on a Friday.

Further details about Ethel Caterham's life and this celebration are available from the source. The information provided focuses on her achievement of reaching 117 years of age.

For more information about Ethel Caterham and her 117th birthday, readers can refer to the original source for additional details and context.