[423] Inf. xxvi. 106-142.
[424] Ptolemy’s Geography, Bk. I.
[426] Esdras II. vi. 42.
[427] Beazley, Dawn of Geography iii. 28, 29.
[428] Corvino and Marco Polo made the voyage in the same year, 1292, but in reverse directions.
[429] Purg. iii. 25.
[430] Purg. xv. 1-6.
[431] Purg. iv. 68-71; xxvii. 1-5.
[432] Purg. xxviii. 142. Opinions differed as to its exact site, and some placed it in the ocean beyond the eastern limit of the habitable earth. In V. E. I. viii. 6-10, Dante says that the root of the human race was planted in eastern lands, but this refers to Adam’s home after the expulsion from Paradise.