Blue Backed Speller - Noah Webster

This speller involved the spelling out of syllables and is believed to have contributed to the shaping of the American accent through this sounding out e.g. ce met e ry (instead of British sound 'cemetry') and la bo ra tor y (instead of British sound 'laboratry),

It also marked the break in speeling from the British with Webster deciding to simplify various British words such as colour/color, waggon/wagon.