My four-year-old daughter is asking questions about colonial history. How do I respond in an age-appropriate way?

By the time they turn five, children of all races have already absorbed a frightening amount of racial bias, writes Sisonke Msimang. Composite: ediebloom/Guardian Design

Dear Ms Understanding,

I am a white Australian and my partner is Mexican. We live in Australia and have a four-year-old daughter. Lately she has been asking questions that I don’t know how to answer.