"Charles Darwin" by Grant Allen is a historical account written in the late 19th century. This work serves as a detailed exploration of the life, ideas, and the historical context in which Darwin operated, portraying him as both a significant figure and a product of a larger intellectual movement towards evolution and natural selection. It seeks to illuminate how Darwin’s thoughts evolved and contributed to groundbreaking changes in biology and the broader implications for thought in general. The opening of the book outlines the premise that Darwin was not only born into a conducive environment for scientific inquiry but was also part of a continuum of evolutionary thought already brewing in society. It details how Darwin was distinguished not as the first to propose evolution, but as the one who clarified the mechanisms of natural selection. The text sets the stage for a narrative that will delve into Darwin's background, his intellectual ancestry, and the societal and scientific milieu that shaped him. Major influences from thinkers such as Lamarck and Malthus, along with a growing shift in scientific understanding during Darwin’s formative years, are hinted at, suggesting a detailed analysis of how Darwin’s contributions integrated into and advanced the evolutionary discourse of his time. (This is an automatically generated summary.)