Answer:
you can write how whites were doing for blacks, how they treats them, the difference of past years and now
Wedding day of any man in the world is the day when everything goes wrong.
The best way to do so is by stating your claim, and use evidence to support it. If there is no evidence to support your claim, it is simply just an opinion and people will have no reason to think you are right.
Hope this helped, have a good day :)