Our Founding Fathers included Islam

That's the title to this article in Salon by DENISE SPELLBERG that is an excerpt from her book. A taste:

Amid the interdenominational Christian violence in Europe, some Christians, beginning in the sixteenth century, chose Muslims as the test case for the demarcation of the theoretical boundaries of their toleration for all believers. Because of these European precedents, Muslims also became a part of American debates about religion and the limits of citizenship. As they set about creating a new government in the United States, the American Founders, Protestants all, frequently referred to the adherents of Islam as they contemplated the proper scope of religious freedom and individual rights among the nation’s present and potential inhabitants. The founding generation debated whether the United States should be exclusively Protestant or a religiously plural polity. And if the latter, whether political equality—the full rights of citizenship, including access to the highest office—should extend to non-Protestants. The mention, then, of Muslims as potential citizens of the United States forced the Protestant majority to imagine the parameters of their new society beyond toleration. It obliged them to interrogate the nature of religious freedom: the issue of a “religious test” in the Constitution, like the ones that would exist at the state level into the nineteenth century; the question of “an establishment of religion,” potentially of Protestant Christianity; and the meaning and extent of a separation of religion from government.