Keywords: Playfair WheatandLabour.gif Chart Showing at One View the Price of the Quarter of Wheat and Wages of Labour by the Week from 1565 to 1821 Auf einen Blick die Preise für Weizen und Wochenlöhne von 1565 bis 1821 Letter on our agricultural distresses their causes and remedies; accompanied with tables and copper-plate charts shewing and comparing the prices of wheat bread and labour from 1565 to 1821 addressed to the Lords and Commons London Printed for W Sams 1822 1822 William Playfair 120px PD-old 18th-century diagrams Bar charts William Playfair History of visualization Wage charts of the United Kingdom |