This section, Using a pre-existing subdirectory install, will get you #2:
https://codex.wordpress.org/Giving_WordPress_Its_Own_Directory#Using_a_pre-existing_subdirectory_install
Especially note the sentence “If you already have content in your site, see when your domain name or URLs change for how to deal with references to the old URL that will remain in the database.”
Creating a page called 2016, and replicating your home page there, will get you #1.
Only potential problem: previous bookmarks made by visitors will no longer work.
Thread Starter
shuba
(@shuba)
Thank you. Fixed #2.
Hmm.. Do I need to recreate the whole new website and replicate the content? Wow wish I had thought about it earlier.
Thanks.
“Do I need to recreate the whole new website and replicate the content?” – only if you want existing Bookmarks to work (that visitors may have made in their browsers).
“Creating a page called 2016, and replicating your home page there, will get you #1.” – a better idea is to make an index.html file at /2016/index.html with an automatic redirect to the home page. Using the meta Refresh HTML tag.