Why did early attempts to form a union fail?

Which of the following actions best shows how a historian would study the historiography of the french revolution? o a. reading about how earlier historians wrote about the french o b. creating a map of the important events of the french revolution o c. writing an unbiased history book about the french revolution's revolution leader o d. placing key events of the french revolution in chronological order

Which of these were achievements of the safavid dynasty? check all that apply.

Brainliestt asap!me : ) describe the difference : capitalism vs. communism