Similarities between Sam Houston and Mirabeau Lamar are:
Both Sam Houston and Mirabeau Lamar were strong leaders, with visions for the new Republic to shape the future of Texas. They both spent time with bands of Indians in their middle ages and underwent through little schooling
In my view the best word would be ethos. Ethos is the set of fundamental values, guiding principles, social practices and beliefs that constitute the character of a particular culture.
American General-Eisenhower
British General-Montgomery
Out of all the things that made Constantinople an ideal location or a capital, it was its location on the Mediterranean Sea that was the most beneficial, since this allowed its trading opportunities with other nations to increase dramatically.