At least 50 people were killed in the stampede.
Feyisa Lilesa's daring protest exposed the world to Ethiopia's deadly crackdown.
Human rights groups say at least 140 people have been killed in protests over a land expansion plan.
The Ogadenis have a longstanding group grievance that is part and parcel of their indomitable desire for self-determination, which has never been addressed. The current uprising is a culmination of systematic injustice perpetrated against the Oromo.
For many parents, passing on language and customs to their children is a huge concern.