the nicest thing of automated timelines is that you can see easily the problem with defining "the first"; as well as the difficulties to make a distinction between numbers and years: ie

laptop:

1525 - ooh la la
1975 - Since the advent of the first commercially available laptop computer
1979 - The first recorded idea of a laptop computer
1983 - Joining the argument to be considered the first-ever laptop is the Gavilan computer, which was designed by Manny Fernandez. In 1983