Answer the following Q with stream of consciousness. Passage: The expression is often applied to the Parliament of the United Kingdom because of the adoption of the Westminster model of parliamentary democracy by many countries of the former British Empire.

Question: Based on this passage, why is the british parliament known as the mother of parliaments?
The important part for answering this question is: The expression is often applied to the Parliament of the United Kingdom because of the adoption of the Westminster model of parliamentary democracy by many countries of the former British Empire. Therefore, the final answer is because of the adoption of the Westminster model of parliamentary democracy by many countries of the former British Empire.