Pakistan adopted its first and only constitution in 1980.
Henry Vincent -LRB- 10 May 1813 -- 29 December 1878 -RRB- was active in the formation of early Working Men 's Associations in Britain , a popular Chartist leader , brilliant and gifted public orator , prospective but ultimately unsuccessful Victorian member of parliament , and later an anti-slavery campaigner .. Chartist. Chartism. Victorian. Victorian era. anti-slavery. abolitionism in the United Kingdom