Category:Trade unions established in 1878 From Wikipedia, the free encyclopedia This category is for trade unions (aka labor unions) established in the year 1878. 18731874187518761877187818791880188118821883 1820s1830s1840s1850s1860s1870s1880s1890s1900s1910s1920s Organized Labour portalHistory portal2020s portal Related Articles~TimelinesTop QsFact Checks
