Final Answer:
The estimate of an American Indian population of 1.148 million for North America based on accounts of early European travelers is attributed to the work of historian Henry F. Dobyns.
Step-by-step explanation:
Henry F. Dobyns, an American historian, is credited with deriving the estimate of 1.148 million for the pre-Columbian Native American population in North America. Dobyns based his calculation on accounts provided by early European explorers and settlers, analyzing their observations and reports to arrive at a comprehensive estimate.
His methodology involved examining various historical documents, including diaries, travel logs, and colonial records, to extract information about indigenous populations and settlements.
Dobyns' estimate considered factors such as population density, migration patterns, and regional variations in population concentrations. By synthesizing data from multiple sources, he aimed to provide a more nuanced understanding of the demographic landscape before the arrival of Europeans. It's important to note that estimates of pre-Columbian Native American populations can be challenging due to the scarcity and reliability of historical records.
Dobyns' work, while influential, has been subject to scholarly debate and critique, highlighting the complexities inherent in reconstructing historical demographics. Nonetheless, his research laid a foundation for discussions about the impact of European contact on indigenous populations and their societies.