J005311

I third(?) this request

1. Cộng đồng
2. Feature Requests and General Site Feedback
3. More exercises for advanced math (multivariate calc, linear algebra etc.)

Are all the badges like gonna retire or something? Is there a gonna be a new achievement system or something?

1. Cộng đồng
2. Technical Issues and Workarounds
3. 50 badges showing as retired.

Btw, they all retired as of April 27, 2020

1. Cộng đồng
2. Technical Issues and Workarounds
3. 50 badges showing as retired.

I was striving to get Da Vinci for sooooo long, but then it retired. :-(

1. Cộng đồng
2. Technical Issues and Workarounds
3. 50 badges showing as retired.

It's like asking "What's in Area 51?" to a president, there is no point. OR most of the staff don't know how to get them either.

1. Cộng đồng
2. General Khan Academy Questions
3. Black Hole Badges

Funny how the staff NEVER answer this question.

1. Cộng đồng
2. General Khan Academy Questions
3. Black Hole Badges