Complex sentence: Leodiensian is the name given to the school magazine of Leeds Grammar School; the first edition was published in October 1827, and it became a regular annual publication from the year 1882, making it one of the longest running school publications.
Split into simpler sentences: Leodiensian is the name given to the school magazine of Leeds Grammar School. Originally founded in 1826; it became a regular annual publication from the year 1882, making it one of the longest running school publications.