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en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
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2

aug 17, 1834 - Mason published Manual of Instruction published -based on Pestalozzian principles

Added to timeline:

11 months ago
0
0
150
608 History 2nd attempt

Date:

aug 17, 1834
Now
~ 184 years ago
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