1592953015000 1312632483000 term-27904 1616541342600 1312632518000 1616290628413 adlib fitz-online adlib-term-27904 92897d8a-3863-3c6b-b4a0-72e87141ff4a 2 1 perspective, Renaissance perspective, Renaissance term reference term-28839 adlib-term-28839 fcf18230-5e0d-3afc-85a1-04a0012eff37 linear perspective