The youngest mother whose history is authenticated is Lina Medina, who delivered a 6½-pound boy by cesarean section in Lima, Peru in 1939, at an age of 5 years and 7 months. The child was raised as her brother and only discovered that Lina was his mother when he was 10. On April 9, 2003, Satyabhama Mahapatra, a 65-year-old retired schoolteacher in India, became the world's oldest mother when she gave birth to a baby boy. Satyabhama and her husband had been married 50 years, but this is their first child. The baby was conceived through artificial insemination using eggs from the woman's 26-year-old niece, and the sperm of the nieces husband. Bobbie McCaughey is the mother who holds the record for the most surviving children from a single birth. She gave birth to the first set of surviving septuplets - four boys and three girls - on November 19, 1997, at the University Hospital, Iowa. Conceived by in vitro fertilization, the babies were delivered after 31 weeks by caesarean in the space of 16 minutes. Jayne Bleackley is the mother who holds the record for the shortest interval between two children born in separate confinements. She gave birth to Joseph Robert on September 3, 1999, and Annie Jessica Joyce on March 30, 2000. The babies were born 208 days apart. Elizabeth Ann Buttle is the mother who holds the record for the longest interval between the birth of two children. She gave birth to Belinda on May 19,1956 and Joseph on November 20, 1997. The babies were born 41 years 185 days apart. The mother was 60 years old when her son Joseph was born. The highest officially recorded number of children born to one mother is 69, to the first wife of Feodor Vassilyev (1707-1782) of Shuya, Russia. Between 1725 and 1765, in a total of 27 confinements, she gave birth to 16 pairs of twins, seven sets of triplets, and four sets of quadruplets. 67 of them survived infancy. The modern world record for giving birth is held by Leontina Albina from San Antonio, Chile. Leontina claims to be the mother of 64 children, of which only 55 of them are documented. She is listed in the 1999 Guinness World Records but dropped from later editions. And you thought your two kids at home were a challenge.