<P> From 1787 until his death in 1795, Wedgwood actively participated in the abolition of slavery cause . His Slave Medallion brought public attention to abolition . Wedgwood reproduced the design in a cameo with the black figure against a white background and donated hundreds to the society for distribution . Thomas Clarkson wrote; "ladies wore them in bracelets, and others had them fitted up in an ornamental manner as pins for their hair . At length the taste for wearing them became general, and thus fashion, which usually confines itself to worthless things, was seen for once in the honorable office of promoting the cause of justice, humanity and freedom". </P> <P> The design on the medallion became popular and was used elsewhere: large - scale copies were painted to hang on walls and it was used on clay tobacco pipes . </P> <P> He was elected to the Royal Society in 1783 for the development of a pyrometer, a device to measure the extremely high temperatures that are found in kilns during the firing of pottery . </P> <P> He was an active member of the Lunar Society of Birmingham often held at Erasmus Darwin House and is remembered on the Moonstones in Birmingham . </P>

Am i not a man and your brother