Day inventory
1810 — officially announced the reopening of conceived by Peter the great the Mariinskaya water system — an artificial waterway connecting the Volga basin with the Baltic sea
1925 — USSR joins the International metre Convention
1970 — completed construction of the Aswan dam in Egypt, lasted 11 years
1975 — end of experiment “Soyuz–Apollo”
2010 — diversion on Baksansky hydroelectric power station (Kabardino-Balkaria, Russia). Damaged two hydro, two guards were killed.
