Title: Sumer.
Question: What had the Sumerians perfected before coming south?

Title: Portugal.
Question: What is the Policia Judiciaria - PJ (Judicial Police)?

Title: Freemasonry.
Question: How long have Masonic Lodges been in Iraq?

Title: 2008 Sichuan earthquake.
Question:
When did groups from South Korea, Japan, and others arrive in China?