It wasn't until the third century b.c. that techniques of rice cultivation (and wheel-made pottery) arrived from Korea, along with irrigation methods that are still in use today.
It was not until the third century that techniques of cultivation arrived.
It was not until the fifth century that techniques of cultivation for rice farming came.
What is the ethics behind the justification for polygamy?
Techniques that are taken from Burns' documentaries annoy some people.
Grand Rapids has a drug problem worse than Detroit's.
Our experts are people who have read books on certain subjects.
People are moving forward on the track.
Arab invaders contributed to the downfall of this town 900 years ago.