The Ceramic and Allied Trades Union was created in the early 19th century to protect workers from dangerous conditions of their field.
Wikipedia (http://en.wikipedia.org/wiki/Main_Page)
Ceramic_and_Allied_Trades_Union (http://en.wikipedia.org/wiki/Ceramic_and_Allied_Trades_Union)
version history (http://en.wikipedia.org/w/index.php?title=Ceramic_and_Allied_Trades_Union&action=history)
GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License)
CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)
