Legality of Cannabis by U.S. Jurisdiction This category is for school buildings which were completed in the decade 1790s. 1740s1750s1760s1770s1780s1790s1800s1810s1820s1830s1840s 13th14th15th16th17th18th19th20th21st22nd23rd Subcategories This category has the following 8 subcategories, out of 8 total. 0–9 School buildings completed in 1790 (5 P) School buildings completed in 1791 (1 P) School buildings completed in 1792 (1 P) School buildings completed in 1793 (4 P) School buildings completed in 1794 (4 P) School buildings completed in 1795 (4 P) School buildings completed in 1798 (1 P) School buildings completed in 1799 (1 P)