In most cases, 'Speak Now' isn't based on real events. It's probably the imagination of the author or creator, designed to entertain and engage the audience.
One way is to check the source. If it comes from a reliable person like an eyewitness or an expert in the relevant field. For example, if it's a historical event, a historian's account would be more trustworthy. Another way is to cross - reference. Look for other sources that tell a similar story. If multiple reliable sources say the same thing, it's likely to be based on facts.
Speak isn't based on a true story. It's a product of the author's imagination, designed to engage and evoke emotions through fictional characters and plotlines.
Sharing true stories can also inspire others. Your story of achieving a difficult goal despite the odds can give someone else the motivation they need to pursue their dreams. Let's say you talk about starting your own business from scratch, it might encourage someone to take that leap in their own life. It's like passing on a torch of hope.