Passage: Olsson was born in Oknö near Mönsterås, the second-eldest of five children; her siblings were all brothers. She suffered a head wound while outdoors at age 14 on 18 February 1876, but seemed to recover from it quickly. On 22 February, she complained of a toothache. Her family believed that her tooth was sore because of witchcraft, and she was ordered to go to bed. However, when she fell asleep, she did not wake up.Her father was a fisherman and unable to afford a doctor, and the family relied instead on the advice of friends and the town midwife. Olsson's mother force-fed her milk and sugar water. Finally, the neighbors paid for a visit from a doctor, who was unable to wake the sleeping girl and determined that she was in a coma. This doctor continued to visit her for a year, after which he wrote to the editor of Scandinavia's leading medical journal, soliciting the help of other professionals in finding a cure for Olsson's continuous sleep-state. Olsson was visited by doctors who noted that her hair, fingernails, and toenails did not appear to grow. The family reported that Olsson occasionally sat up and "mumble[d] prayers she had learned by rote in childhood".One doctor who visited Olsson was Johan Emil Almbladh, who thought that her sleep-state was a result of hysteria. In July 1892, Olsson was hospitalized in Oskarshamn, where she was treated with electroconvulsive therapy. On 2 August 1892, she was released from the hospital without awakening or her situation improving. The hospital said that the appropriate diagnosis was "dementia paralytica". However, there is little to suggest that she actually suffered from that illness. She was not re-examined by a doctor until she awoke from her sleep.During the entire time that she was asleep, Olsson was given two glasses of milk each day. Her mother died in 1904, and after this, a maid continued to take care of Olsson and the household. Upon the death of her brother in 1907, Karolina began crying hysterically, although she remained asleep. She reportedly did not...

Question: When did Olsson lose her mother
1904