Final answer:
The Supreme Court of Canada's decision in the 'Persons Case' of 1929 established that the word 'Persons' in the British North America Act, 1867, includes female persons, which was a significant step for women's rights in Canada.
Step-by-step explanation:
The question refers to a historical legal decision related to the Supreme Court of Canada and its interpretation of the word 'Persons' as per section 24 of the British North America Act, 1867. This act did not explicitly define 'Persons' to include female persons, leading to the famous 'Persons Case' in 1929, where it was finally established that women were indeed eligible to serve in the Senate, thus recognizing females as 'Persons' under the Act. This was a pivotal moment for women's rights in Canada, marking their inclusion in the definition and paving the way for gender equality in Canadian law.