Post Hoc Ergo Propter Hoc

From FreeThoughtPedia

Post Hoc, Ergo Propter Hoc is a logical fallacy in which one argues that because one event happened after another event, the event that happened first caused the second event. This is illustrated thus:

1. A happened before B.
2. Therefore, A is the cause of B.

The fallacious nature of this argument is illustrated with this absurd example:

1. After I coughed, my microwave exploded.
2. Therefore, my coughing caused my microwave to explode.

The phrase itself is Latin for "after this, therefore because of this".