There have, of course, been brief phases of ideological or identity polarizations. (globaleducationmagazine.com)
Christians had a few brief phases when they were targeted but that all ended when Constantine made Christianism a state religion. (religion.blogs.cnn.com)
However, in trying to develop this recipe I got to thinking and I remembered that early in my paleo days, I did go through a brief phase of making kale chips because they were quick, easy and I could do them in the oven rather than in a dehydrator. (sweetpotatoesandsocialchange.com)