By the Middle Ages it was well and truly mainstream.
"We need to see a development of the tech before we see it becoming mainstream.
However, spurred on by pressure from social media, those demands have been pushed into the mainstream, forcing McDonald's and its rivals to make significant changes to the food they offer, and having a knock-on effect on companies such as Tyson in their supply chain.
But it is a different story with mainstream banks.
Lin hope that China's increasingly health-conscious middle class will help bring medicinal meats into the mainstream.
One reason may be that many of them are new foods in the mainstream American diet.
There has not been dairy in the mainstream Chinese diet for centuries — no butter, no milk, no cheese, nothing.
"Access to the mainstream market has been a challenge for older customers, resulting in their needs going unfulfilled.
On top of that, mainstream attitudes generally work out so that women are, on average, more accommodating and deferential than men.
The lyric-poem type literary works have become the mainstream of the course of progress of Chinese literature.
But now, more mainstream musicians have started producing albums on cassette again.
Now the dances are enjoying a mainstream revival.
However, Palmer Luckey, who founded Oculus from his parents' garage in 2012, says the technology requires many years of further development before it can "replace smartphones" for mainstream users.
The series became an island of mainstream in a sea of niche by embodying contradictions.
That fact alone seems destined to propel the march of the renminbi, once considered an exotic currency, further into the mainstream.
Mainstream prevention strategies like education and behavioral intervention didn't work well for them, said Wu.
But this year, mainstream media organizations like Buzzfeed and the National Geographic Channel are confronting the myths surrounding Thanksgiving.
Babe is targeted towards chubby men, a body type that is rarely represented in the mainstream fashion industry.
Or, to use the technical term, P2P threatened to "disintermediate" mainstream finance, in a democratic way.
They want creativity, and ideas, and thinking outside the mainstream.
