Yes, Theodore Roosevelt was definitely one of the most inspiring leaders in the history of the USA. Not only was he great in the role of the President of the USA, leading the country into the so called "Progressive era", but he excelled in almost anything he did, from studies and writing to military service.
Teddy Roosevelt was an inspiring leader because he helped the country at a time when his style of leadership was very effective. A camping trip with a friend encouraged the President to start the national park system. Americans love the national park system and they are proud of it. Roosevelt gets the credit for this accomplishment.
Yes, Teddy Roosevelt was an inspiring leader because he helped create so many of the national parks that we now can use today. He helped the environment and used his booming presence to get things done. He never took "no" for an answer and always pushed back to get his way.
Teddy Roosevelt was a larger-than-life man who inspired the country through his tough talk and tougher action. Win or lose, you knew where Roosevelt stood on an issue, and that's important for citizens of the country. I actually think that he's a past version of somebody like Donald Trump. Of course, Roosevelt also had a ton of political smarts.