in the mid-1960s he began looking on Thera for
ancient settlements,didn’t he? Did in the mid-1960s he begin looking on Thera
for ancient settlements?
Did he begin looking on Thera for ancient
settlements in the mid-1960s or 1970s?
Who began looking on thera
for ancient settlements?
When did he begin looking
on thera for ancient settlements? What did he begin looking for?