What were the reasons for the disagreements between the orthodox christian church and the roman catholic church in the mid-11c?

The diferent view on a nature of christ and holy spirit (only theological one) and should pope have supremacy over patriarch of cionstantinople or should they be equal  were the reasons for the disagreements between the orthodox christian church and the roman catholic church in the mid-11c

the following best describes postwar era writers in their works:

progressive

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

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