Title: Separation of church and state in the United States.
Question: What did William Penn ensure the protection of in his colony?

Title: To Kill a Mockingbird.
Question: When did the Montgomery Bus Boycott take place?

Title: Child labour.
Question: In 1833 at what age was the limit to working in a textile industry factory?

Title: Videoconferencing.
Question:
What is one example of what the signaling plane controls in a videoconferencing system?