Article content It’s been one year since Alberta logged its first case of COVID-19. Here are some of the most significant moments over the course of the pandemic in the province. March 5: Alberta identifies its first presumptive COVID-19 case, a Calgary woman returning from a California cruise. We apologize, but this video has failed to load. Try refreshing your browser, or Twelve months of COVID-19: A timeline of the pandemic in Alberta Back to video March 11: The World Health Organization declares COVID-19 a pandemic, while Alberta begins to recommend against out-of-country travel. The following day, Alberta bans gatherings of more than 250 people.