Over and over again he rehearsed it in wearisome <em><u>repetition</u></em><em><u> </u></em>until it had assumed a certain and almost invariable form.
Hence the answer is :
<h3>(c) Repetition </h3>
I believe it is the Mayflower Compact written in 1620 because the compact basically established the structure of the first governments enforced onto the colonies where the colonists agreed to choose their own leaders for their governments
Decolonisation and nationalism topic is often used as a theme for studying world history since World War I. Hope this helps!
Matthew, Mark, Luke, and John