Don‘t put timestamp on the URL.
They‘re too long and cumbersome.
You could save the timestamp in the source file and show it in the page. I am not fan of showing the creation timestamp, I only show updated timestamp. Because people would judge by this post created 10 years ago, while the content is still useful. So now I only show updated timestamp.
I think this helps people to decide if they want to read.
Keep the URL forever
I forgot who said it but keep the URL working is the No.1 rule of the internet. Even you deleted the post, set up redirects for future people til there is no traffic!
Don‘t Translate URL
Suppose you have a:
dont translate to
because when users copy paste the url and share on places, it looks like this:
Also a word could have many different translations.