This Short Film from 1907-1911 is considered the first anime in history and although it only lasts 3 seconds I will not take away its historical merit.
Apparently this was discovered almost 100 years later in Kyoto and the truth is that the material was preserved during those years since the images still look good and the material apparently did not deteriorate over the years.
The short is based on a person writing on a blackboard and then turning around and taking off his hat to the viewer.
The short is not the most interesting, if not what is interesting is its history, which I will not know how to summarize, so I invite you to wikipedia to read it.
Being a short film of low duration I can not say more.
For what I said above I give it a 5.