| Show spread of Edu education catlon 1 in 1810 1940 tho year in w which the tha 1 united states census began to enumerate 1 the number of persons that had bad attended sobel the previous preT year total amount ot of schooling for or each in habitant was days and according to tho census of 1850 1890 the average amount of schooling had increased to days for this decade was vaa a period of agitation on tho the part of horace mann and his disciples in 1870 thit the number had bad reached days and iu 1900 1026 days |