Final answer:
Thomas Jefferson aimed to create an American national identity through his writings, celebrating American freedom and contributing to the country's ideological foundation, alongside contemporaries like Ralph Waldo Emerson and Alexis de Tocqueville.
Step-by-step explanation:
The author and inventor who was interested in creating an American national identity through his writings was Thomas Jefferson. Jefferson, a monumental figure in American history, was deeply invested in the notion of liberty and individual rights. In anticipation of the 50th anniversary of America's Declaration of Independence, he celebrated the impact of American freedom on the world stage.
Moreover, Jefferson’s writings and inventions contributed to the development of a distinctive American culture and ideology during a time when the nation was still finding its footing. His literary and political contributions played a pivotal role in shaping the principles of democracy and governance in the new nation. Furthermore, authors like Ralph Waldo Emerson and Alexis de Tocqueville were contemporaries who also explored themes of individualism, nonconformity, and the spirit of democracy in their works, reflecting on the evolving American identity.