it was built to honor hera in the late 1500 b.c when hera ruled italy.
in Olympia
hearion, was built to honor Hera
HERA
Greek Temple of Hera in Selinunte
In old days this was done in worship of a temple or shine.
There was more than one, but the most well-known was at Olympia.
The Heraion of Olympia (the temple of Hera in Olympia) 600 BC.
Temple's mainly, each god and goddess had their own temple back in the Greek times.
Hera was really Zeus's only wife. However, he did have many affairs with mortals, nymphs, ect.
She had a temple there, and (like other gods) she could be present at several places simultaneously.
At the Temple of Hera at the site of the ancient Olympics in Olympia, Greece.