The correct answer is an anthology. I said a monograph and it corrected me to anthology.
An example could be an operation
He was working hard one day until a metal bean fell on his head
No one is sure which made it at the very start as it is very old and has evolved majorly overtime but the first acoustic guitar that would he recognized as a guitar today was invented by Antonio de Torres Jurado and the first ever electric guitar was invented by George Beauchamp and Adolph Rickenbacker