Well, there's no cartoon or letter, but many Northerners lost interest in reconstruction because their attempts to protect former slaves failed, and a lot of slaves ended up as sharecroppers, which wasn't really any different to slavery. Basically, the slaves were still uneducated, poor, in the South, and didn't have any more rights than before reconstruction because of black codes (Jim Crow laws) and sharecropping.
The slogan <em>“no taxation without representation”</em> became widely popular among the American colonists during the 18th century. It reflected the sentiment of the residents of the colonies, which felt that they didn't have the adequate representation in the British Parliament but were at the same time affected by the laws this institution passed. This ideal would eventually pave the way to the US revolutionary war.
As an example, it is common to think that the student councils of educational institutions don't have the necessary power of representation in regards to the rules imposed in these schools and how do the entity's authorities enforce them.
Taking into account the statement above: "According to the reading on the course web pages, the earliest usage of stone tools began around _____ million years ago."
The answer is: 2.6 million years ago.
Hope this helps.
Hope