I do remember my childhood in early nineties Russia. Spelt was a rare relief from eating millet for month on end.
The difference of spelt from bulgur is that bulgur is made of hulled grain, and spelt usually from grains that have naturally thin hull.
What I noticed while living in Canada, is that in North America people eat very few grains. Even finding plain buckwheat required a trip to "European" foodstores. But yeah, quinoa and other novelty foods were everywhere.