Why is it important to remember 9/11?

i know it is just a historical event but i just need more details..

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?

Hilard and clint are seeing a therapist for their sexual difficulties. their homework assignment this week is to caress each other while communicating what is pleasurable to each of them, and to avoid setting any performance goals. this is called the exercise.

What did justice brown’s verdict in plessy v. ferguson state?