The Mexican Frontier, 1821–1846 published by other historians. This work was supplemented by additional primary materials which he discovered in the archives that allowed him to delve further into certain areas. "The Mexican Frontier" examines the southwestern United States, specifically the areas now known as Arizona, California, New Mexico, and Texas, in the twenty-five years between Mexico's independence from Spain and the beginning of the Mexican–American War. This resulted in the transfer of control of the border areas to the United States. In the early days of the Republic of Mexico, these areas comprised its northern border, including the territories of Alta California and
Serb volunteers in the Greek War of Independence Serb volunteers in the Greek War of Independence Some Serbs joined the Greeks, their co-religionists, in the Greek War of Independence (1821–29). Volunteers arrived from Serbia, Montenegro, and territories still under Ottoman rule, to fight alongside the Greek rebels against the Ottoman Empire. Several of the volunteers were veterans of the Serbian Revolution, such as Hadži-Prodan, During the first decades of the 19th century, the First Serbian Uprising and the secret preparations for a Greek revolution coincided. The news of the Serbian revolt of 1804 were received with great joy by the Greeks, who viewed it as a paradigm for