Title: London.
Question: London's Stanmore and Canons Park Synagogue passed London's Ilford Synagogue in terms of membership in what year?

Title: Renewable energy commercialization.
Question: What plays a major role in the energy mix of many countries?

Title: Protestantism.
Question: The Puritan movement worked on reforming what church?

Title: Sahara.
Question:
What time period did the colonialism of the Sahara begin?