Integrative Levels Classification project ILC2 schedules developing schedules how it works people references
ILC class tywni

ILC developing version
Expanded class tywni

   ▲  broader class

▽ ⌕         tywni                      Industrial Revolution ~1760-1870  ↞ rt factories
 
Connected classes:
 

specificity 
current: 99 

   
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