History is part of everything else. Science is based on observable, repeatable fact (though my friend Matt says science is actually based on curiosity, and that observation is just a tool). That observation and recording is history, the written record of what has transpired. Without history, nothing that happens has context. It is just meaningless data. History helps us understand what is happening now, based on what has happened before.
Our veterans have been present for some of the most harrowing moments of our recent history. We cannot know how future generations, from their distant perspective, will judge us, but we can choose to live bravely, and with honor, as so many of our previous family has lived and died.
What is now called Veteran's Day was originally created to celebrate the end of the destructive horror of World War I. Read about "Armistice Day" here.
Happy Veteran's Day.