This is the 4056th most frequent Chinese word.
创立
"创立" means "to establish" or "to found."
创立 is used here to mean 'founded' or 'established' in the context of creating a new organization or company.
他在上世纪创立了一家跨国公司。
He founded a multinational company in the last century.
创立 in this sentence refers to developing or establishing a new scientific concept or theory.
这位科学家创立了一个重要的理论。
The scientist established an important theory.
创立 indicates the act of forming or initiating a group or organization, emphasizing initial creation.