Why do you think it was invented? I think it was invented to write and to make signs to express what people wanted to say.
How has this object changed? Now we don't have to dip it in ink and it's in different colors. How does this object affect peoples lives? It affects peoples lives beacause you can write and you can draw and some times it's even five colors or erasable. How might it change and affect peoples lives in the future? It might change beacause it might on its own and read peoples minds and then the pen does all the work.