In 1787, entrepreneurial potter Josiah Wedgwood (1730 – 95) produced a ceramic medallion in support of the abolition of the slave trade. A forerunner of the protest badge, Wedgwood's anti-slavery ...

Wedgwood experimented with barium sulphate (caulk), and from it produced jasper, in 1773. Jasperware, which is used for a whole host of ornaments, blends metallic oxides, often blue, with ...

In 1787, entrepreneurial potter Josiah Wedgwood (1730 – 95) produced a ceramic medallion in support of the abolition of the slave trade. A forerunner of the protest badge, Wedgwood's anti-slavery ...