Time and country
It refers to the method of compiling history books with the year as the longitude and the state as the latitude.
Idioms and allusions
[source]: Jin Biao by Sima Guang of Song Dynasty: "from the Warring States period up to the end of the Five Dynasties down, in 1362, it was completed in 294 volumes. It is a catalogue of 30 volumes
Time and country
supported by irrefutable evidence - záo záo yǒu jù
part with whatever others may want - rén qǔ wǒ yǔ
the sky and earth were spinning round - tiān xuán dì zhuàn
search for the origin and the outcome of the development of things - yuán shǐ fǎn zhōng