Look closely: those crocodiles coming ashore to eat the children are actually Catholic Bishops!  The boy standing bravely on the beach has a Holy Bible sticking out of his coat. A gutted building behind them is labelled Public Schools.  What’s this all about? In the 1870s, when this Thomas Nast cartoon was published, Protestants were aggressively casting Catholics as anti-Bible.  The reason: the Catholics resisted having their kids forced to read the King James version of the Bible (instead of a Catholic translation).

Thomas Nast 1871