/ 
170 
events of its migration ; and it professes to have 
quitted this country^ the situation of which is 
altogether unknown to us, in the year 544, at 
the igame period when the total ruin of the dy- 
nasty of the Tsin had occasioned great com- 
motions among the nations in the east of Asia. 
This circumstance is very remarkable : moreover, 
the names, which the Toltecks bestowed on the 
cities they built, were those of the cities of the 
northern country, which they had been compell- 
ed to abandon ; from this circumstance the ori- 
gin=^ of the Toltecks, the Cirirnecks, the Acol- 
huans, and the Aztecks, of those four nations 
who spoke the same language, and who entered 
successively, and by the same road into Mexico, 
will be known, if we ever discover in the north 
of America or Asia a people acquainted with the 
names of Huehuetlapallan, Aztlan, Teocolhua- 
can, Amaquemecan, Tehuajo, and Copalla.^ 
As far as the parallel of fifty-three leagues, the 
temperature of the north-west coast of America 
is milder than that of the eastern coasts ; we 
might be led to think, therefore, that civilization 
had anciently made some progress in this climate, 
and even in higher latitudes. Even in our own 
times we perceive, that in the fifty-seventh de- 
gree, in Cox’s Channel, and Norfolk Sound, 
* Clavigero, Storia di Messico, tom. 1, p. 126 3 tom. 4, 
p. 29 ami 46. 
