1) The first commercially available digital camera, the Dycam Model 1, was introduced in 1990 and had a resolution of 376 x 240 pixels.

2) The word "triangle" contains four vowels: I, A, E, and E.

3) The lotus flower is considered a sacred symbol in many cultures and is associated with purity, enlightenment, and rebirth.

4) The concept of reinsurance, which is insurance for insurance companies, originated in the 17th century.