Struck by the tractable character of the Guaranis, Mendoza began
to build a fort on August 15, 1537 (which is the day of the Assumption),
and the name he gave to his fort was Asuncion, which afterwards became
the capital of Paraguay.

Espinosa returned to Corpus Christi, and afterwards to Buenos Ayres,
where a small force had still remained. This force,
tired of the ceaseless battles with the Querandis, or Pampa Indians,
embarked for Asuncion.

Irala, after waiting for many months at Fort Olimpo, returned to Asuncion,
where he found Ruiz de Galan acting as Governor. A dispute at once arose
between them, and Irala, after having been imprisoned, was allowed to return
to Fort Olimpo. Here he found the Payagua Indians in rebellion,
and in the battle which ensued he is reported to have slain seven of them
with his own hand.* He still maintained a fitful search for Juan de Ayolas,
but without success.

--
* Few modern `conquerors' in Africa seem to have engaged in personal combat
with the natives. Even of Mr. Rhodes it is not set down
that he has killed many Matabele with his own hands. Times change,
not always for the bettering of things.
--

Galan returned to Buenos Ayres, and, stopping at Corpus Christi,
took occasion to fall upon the friendly and unsuspecting Timbu Indians
and massacre a quantity of them. Why he did so is quite uncertain,
for the Timbues had been in the habit of supplying the fort of Corpus Christi
with provisions; it may be that the quality of the provisions was inferior,