How could I get Artifact knowledge?

[Euphoria 83]

Dear players!

You may want to ask how to get the https://www.wowhead.com/currency=1171/artifact-knowledge? This is the answer - Now the system will give you the artifact knowledge by 1 when per Wednesday. If you are a beginner, the system will give you more artifact knowledge than veteran players, and the system will give you it when you gain a new artifact (Of course, you have to restart the game first.). Because we don't hope beginners have to spend many time to get the artifact knowledge, just in order to catch up with veteran players.

The item - https://www.wowhead.com/item=139390/artifact-research-notes is no longer in need.
The quest - https://www.wowhead.com/quest=47067/seeking-lost-knowledge is no longer in need. Even if you still can complete it. But the item - https://www.wowhead.com/item=147449 is not working anymore.

The Maximum artifact knowledge is 50. It is impossible that to get more than 50.