Why do you insist on giving Henry Ford credit for inventing the assembly line that was invented by Ransom Olds?

You are correct.

Henry Ford did not invent the assembly line. The modern assembly line and its basic concept is credited to Ransom E. Olds, who used it to build the first mass-produced automobile, the Oldsmobile Curved Dash, beginning in 1901.

However, rather then complaining that an answer is wrong, please correct the answer for us, that is the point of a Wiki - we all work to improve the site.