(Tuesday, August 1, 1944; part of The Holocaust during World War II) — On Anne Frank‘s 758th day in hiding in a secret apartment behind her father’s business in German-occupied Amsterdam, the 15-year-old Jewish girl wrote her last entry in her diary today, writing about her “little bundle of contradictions.”

“As I’ve told you many times, I’m split in two,” she wrote. “One side contains my exuberant cheerfulness, my flippancy, my joy in life, and, above all, my ability to appreciate the lighter side of things. By that I mean not finding anything wrong with flirtations, a kiss, an embrace, an off-color joke. This side of me is usually lying in wait to ambush the other one, which is much purer, deeper, and finer…”

She continued, explaining that what she said was often not what she felt, which contributed to her reputation for being “boy-crazy as well as a flirt, a smart aleck, and a reader of romances.”

“The happy-go-lucky Anne laughs, gives a flippant reply, shrugs her shoulders, and pretends she doesn’t give a darn. The quiet Anne reacts in just the opposite way. If I’m being completely honest, I’ll have to admit that it does matter to me, that I’m trying very hard to change myself, but that I’m always up against a more powerful enemy.”

Anne had received the diary on her 13th birthday and wrote in it faithfully during the two years she and seven others (including her parents, Otto and Edith, her sister, Margot; her father’s business associate Hermann van Pels, his wife, Auguste, and their son, Peter; and Fritz Pfeffer, the dentist of Otto Frank’s secretary) lived in hiding during World War II.

Today’s entry marked the end of her detailed and poignant account of life in hiding from the Nazis.

Just three days later, on August 4, 1944, Anne and her family, along with the others in hiding, were unexpectedly arrested by the Gestapo following a tip from an anonymous informant and sent to concentration camps.