Final answer:
Bertha won three medals for her bravery and service during World War I, possibly as a nurse. Her actions and the sacrifice of many women like her were recognized and contributed to societal changes, including the granting of the right to vote to Canadian women.
Step-by-step explanation:
It appears that Bertha was awarded three medals in recognition of her courageous actions during World War I. Although the specific details of Bertha's actions are not provided, she, like many other women who served during the war, may have been a nurse or participated in some other capacity that contributed to the war effort. Her bravery in running into dangerous areas to assist the injured, which ultimately led to being fatally wounded, exemplifies the sacrifice and heroism acknowledged by these medals.
Her story also highlights a significant historical context, as Canadian women received the right to vote in the same month that women like her died in service. It's clear that the valor displayed by women in service during the war played a major role in changing societal views about women's rights and capabilities, leading to historic advancements such as granting the vote to Canadian women.