That is, I think, the sort of historical basis and to the present, the highest objective of the work.
我认为，这是一种历史根基，也是目前工作的最高目标。
纯飞行
Well, there's a historical basis for the fact that passengers almost always board aircraft from the left-hand side.
好吧，乘客几乎总是从左侧登机这一事实是有历史依据的。
2006 English Cafe
The historians all said that the book is completely false, there isn't any historical basis in the main idea in the book.
历史学家们都说这本书完全是假的，书中的主要思想没有任何历史依据。
英语百科
Historicity
Historicity is the historical actuality of persons and events, meaning the quality of being part of history as opposed to being a historical myth, legend, or fiction. Historicity focuses on the truth value of knowledge claims about the past (denoting historical actuality, authenticity, and factuality). The historicity of a claim about the past is its factual status.