Is there a contradiction in the sentence "90th anniversary of the founding of the Party"?

Don't! I personally understand no! From 192 1 to now! In these 90 years! What can be used to describe it so aptly? Birthday of 90 ... Birthday of 90 ... I think he means a lot here! It deserves people's attention and thinking!

If this is an exam! That's another story! Is the book dead or in the book? Hehe, ........... is worth discussing after all!