A biography can contain almost anything about a person- Their entire life, or just one key event... Most biographies, regardless of their length and target audience, will provide basic facts like the time and place in which the person lived.
There are several types of supporting material that you can pull from the sources you find during the research process to add to your speech. They include examples, explanations, statistics, analogies, testimony, and visual aids.
This is places to see high mountains and dark caves. maybe you should just go for holidays like December to have fun