Roesetta Stone is a carved stone that helped decode hieroglyphics
Explanation:
Rosetta stone is a prehistoric Egyptian rock stele in which the pronouncements issued by the young king Ptolemy V were emblazoned. It’s a fixed series of instructions which is written in three lettering and they are Hieroglyphic script, demotic script and lower section of the rock is etched in Greek.
Many historians decoded hieroglyphics which paved way for them to unravel many Egyptian mysteries. The stele was engraved in three languages because these languages were in vogue during the ancient rule of Egyptian kings. Many of the sentences were in praise of the Egyptian sovereigns and their triumphs in battles.
Answer:
Some commodities that became valuable as Americans expanded westward are:
Bison meat: Bison meat was so prized that they were almost became exticint due to overhunting. The Bison was once numerous in the Great Plains, but nowadays, there are much less of them, and mostly in national parks.
Gold: this applies mainly to the California Gold Rush of 1849, which was the event that attracted many immigrants from other parts of the US and the world to the state at the time.
Furs: some of the first people who went west were fur hunters, who hunted many types of furs like beaver fur, which was very valuable at the time.
The poor standing of Leopold the 2nd is most probably attributed to the role he had in the extermination of huge amounts of people in Belgian colonies at the time. This wasn't known at the time, but today we known that Leopold the 2nd had ordered a genocide over the Congonese people.