1) The first modern health insurance policy was introduced in Germany in the late 19th century.

2) The speed of light is approximately 299,792,458 meters per second.

3) The sunflower is not a single flower but a cluster of small flowers arranged in a spiral pattern.

4) Marilyn Monroe, born Norma Jeane Mortenson, was an iconic American actress, model, and singer, known for her beauty, charisma, and tragic personal life.