While not poisonous substances, heat and humidity from summer weather can be deadly to pets. Most pets donât perspire like humans, but use their lungs to get rid of excess heat. As the ambient temperature and humidity rise, their ability to cool in this manner fails and they suffer from heat stroke.
Senet is the oldest board game known to exist. Sets have been found in burial chambers from as far back as 3,500 B.C.âincluding four in Tutankhamenâs tomb. Game boards were three squares wide and ten squares long, and sets typically had five to seven pieces for each player.
The oldest surviving counting board is the Salamis tablet (originally thought to be a gaming board), used by the Babylonians circa 300 B.C., discovered in 1846 on the island of Salamis. It is a slab of white marble measuring 149cm in length, 75cm in width and 4.5cm thick, on which are 5 groups of markings.irca 1600 C.E., use and evolution of the Chinese 1/5 abacus was begun by the Japanese via Korea. In Japanese, the abacus is called Soroban. The 1/4 abacus, a style preferred and still manufactured in Japan today, appeared circa 1930.