(Reuters) – Canadian police on Saturday used pepper spray and stun grenades in an attempt to restore normalcy in Ottawa, parts of which have been paralyzed by protesters opposing the government’s pandemic restrictions. Here is a timeline of main events: Nov. 19 – Prime Minister Justin Trudeau’s government announces that all cross-border truck drivers will be subject to mandatory vaccine and quarantine requirements from Jan. 15. The trucking industry association has warned the mandates could intensify supply-chain disruptions, but opposes protests on public roads. Jan. 28 – A convoy largely con…