Islam's holy book, also know as the Qur'an, was known as a "backbone" to the law system. This helped manage life's daily rituals and the consecutive order with the dynasty.
Ashoka because I’ve been through the same question
Answer:
General Winfield Scott- devised the Anaconda Plan
William Tecumseh Sherman- pioneered the technique of total war
Robert E. Lee- lead the Army of Northern Virginia
General George McClellan- organized the army into skilled professionals
It halted Japanese expansion to the east. :)