Why did Alfred North Whitehead regard events as the basic parts of nature?

Alfred North Whitehead regarded events as the basic components of nature because he sought to ground his understanding of the physical world in the general character of human perception rather than in abstract, imperceptible entities like mathematical points.1

His focus on events was central to his rejection of "scientific materialism," which he argued mistakenly reduced the concrete reality of nature to mere matter in motion. Influenced by Henri Bergson’s antimechanistic philosophy of change, Whitehead posited that the most fundamental feature of nature is "passage," or creative advance. In his metaphysics, known as the philosophy of organism, he viewed the universe as consisting entirely of "becomings"—processes where each event integrates items from the antecedent universe. By defining nature through events, Whitehead aimed to overcome classic dualisms and better reflect the fullness of concrete experience.21