Their first colony was Jamestown 1607
Turkey has a largely homogeneous population in that the majority of the population is Sunni Muslim of Turkish origin. However, there are other ethnic and religious groups within Turkey such as the Kurds and also Shi'a Muslims. The greatest challenge to Turkey due to its internal diversity is the threat of secession and also issues related to national security posed by the Kurdish population. Another major issue today in Turkey is the presence of Syrian refugees and also fighters involved in the Syrian conflict which pose national security threats as well.
These two men seated at the table represent the Irish , with top hat and vest, and German (smoking pipe and drinking german beer) inmigrants in the 1800s in the US. The cartoon refers to the 1882's Chinese Exclusion Act, which was the first American law preventing the inmigration of an specific ethnic/national group. This can be apreciated in the "New Declaration of indepence" at the back of the cartoon.
The legend in the bottom ("If the Yankee Congress can keep the yellow man out, what is to hinder them from calling us green and keeping us out too?") refers to the raising fear in Irish and German groups of facing the same fate of Chinese inmigrants. This let us know American attitude towards inmigrants who weren't seen as equals and were discrimitated for their origins and skin color.