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A nice recap, I doubt anyone can just pick up calculus from this.

Plus, calc 1 was a breeze, calc 2 is where the brain-pain started.

Out of interest, I've never heard this naming scheme (calc 1, calc 2, etc?) back in the UK but it seems quite common in the US. Is the content of these courses very standardized? How far does the sequence go?

It's very standard.

Calc 1: Differentiation up to the Chain Rule, with applications like maximization problems. Basic integration, up to the Substitution Rule.

Calc 2: More-difficult integration techniques (integration by parts, trigonometric substitution, partial-fraction decomposition), infinite series. Most people find Calc 2 the toughest because of the infinite series.

Calc 3: Multivariate calculus, partial derivatives, lots of 3D stuff. Easy, intuitive, spatial.

These are highschool courses or? We did that in highschool (allthough it was repeated in university as well). I suspect the russians are learning that in primary school, because they are so good at math. ;)

It depends on the person. I went through the series in highschool, but many (most?) people do it in college and some never get through it at all.

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