According to Plutarch, it was Solon who invented political euphemism.

Now later writers observe that the ancient Athenians used to cover up the ugliness of things with auspicious and kindly terms, giving them polite and endearing names. Thus they called harlots "companions," taxes "contributions," the garrison of a city its "guard," and the prison a "chamber." But Solon was the first, it would seem, to use this device, when he called his cancelling of debts a "disburdenment."

See http://makeashorterlink.com/?K2EB52D94. Not actually the translation I'm reading, but it links to the Greek text if you want to compare the various terms.

Bingley

Bingley