Petropavlovsk-Kamchatsky: the Prehistory and the History of Foundation (in Russian).

The prehistory of the Avacha bay discovery is being disclosed. It is being shown that lack of attention towards the fact that the astronomic way of calculation of days was used on the Second Kamchatka Expedition vessels, led to setting October 6th(17th) instead of 7th(18th) as a civil date of the official Petropavlovsk-Kamchatsky foundation. It is being disclosed that the packet boat «St Paul», lead by A. Chirikov, entered the Avacha Bay on September 27th, and packet boat «St Peter» under V. Bering's command – on October 6th by astronomic time. The conclusion, that the date of Petropavlovsk-Kamchatsky's foundation ought to be changed to the day of laying of its first buildings, which happened soon after boat «St Gabriel» under command of Ivan Yelagin had entered the Avacha bay on June 22th of the present calendar, is being made.