The research done on this rapidly growing field of interest started about 15 years ago.

"A couple of dozen is enough to get the research started."

However, it was not until the 19th century that research into the subject started to intensify.

It is true, she says, that in the last five years more research has started to be done on women.

In August 1968, preliminary research into a new port started.

Despite research having started in the 1950s, no commercial fusion reactor is expected before 2050.

The excavation and research of its remains started in 1911.

In the early 1990s research and statistics started to be heavily utilized.

Their research started by collecting soil samples from all over the country.

The best research starts by looking at secondary data, this information already exists.