The presence of french loan words (such as "marriage" and "parliament") in our modern english language is due to the fact that anglo-norman or old french was spoken in england after the norman conquest for nearly years.

I believe the answer is: 400

The norman conquest happened after the duke of Normandy initiated and won the battle of hastings in 1066. During this process, cultural assimilation occured between the two societies, resulting in the mixture of language, system of government, societal tradition, and roles that expected among people.

can you explain it better