Final answer:
Kim Campbell was sworn in as the first female Prime Minister of Canada on June 25th, 1993, marking a historic moment for the country's political landscape.
Step-by-step explanation:
On June 25th, 1993, Kim Campbell was sworn in as the first and so far only female Prime Minister of Canada. This historical event is significant in the context of Canadian politics and the overall progress of women in governance. Canada has had a series of notable milestones for women in its political landscape. For instance, Agnes Campbell Macphail was the first woman elected to the House of Commons in 1921, Cairine Reay Wilson was the first woman appointed to the Canadian Senate in 1930, and later on, Kim Campbell took her place as the country's first female Prime Minister, reflecting the gradual, yet impactful, strides women have been making in Canadian politics.