The phrase "eras of design" is correct and can be used in written English.
For example, "Throughout the ages, different eras of design have been used to shape our world."
More than 300 years after the invention of printing, the 19th century was an era of design enlightenment.
The pessimism of this architectural approach to safety-in-motoring seems to us wholly characteristic of our wondrous era of design, in which the inevitability of disaster is accepted.
It's curious how much the ethos of the adventure playground chimes with the language of a new era of design today: a "participatory" process, recycled materials, an adaptive product.
Mr. Lagerfeld has in fact cultivated such a mutant mania for systematically collecting (even conquering) this or that era of design that he could be a character in an X-Men sequel (code name: Curio).
Today we live in an era of design to which everything is relevant.
We live in a new era of "design".
A new exhibition at London's Kemistry Gallery is paying tribute to this golden era of design in "Ken Sequin's Polish Adventure," a survey of one graduate student's collection of unique cinematic artworks.
They've won three Super Bowls since 2001, an incredible feat in an era of designed NFL parity.
Another lesson of the Detroit show: in the era of 35.5, design innovation will happen inside the vehicle at least as much as outside.
