Greatmen

4 clues
Heroes
History book fodder, often
Edison and Einstein, for two
Some history book personalities
Similar answers:
Abetment
Abutment
Abutments
Acompartment
Adepartmentstoreandhe
Adjustment
Adjustments
Afteragreatchef
Agreat
Agreatadvantage
Agreatdeal
Agreatfallandit
Agreatleap
Agreatplayonwords
Agreatwaytohave
Agreatwizardwhy
Akbarthegreat
Albrightmenckenwright
Alfredthegreat
Allotment