To make it simpler to buy and sell things. Previously, you had to find a player, nearby, who happened to want to buy what you were selling (or vice versa). Now, you can place your offer in the Grand Exchange, for example a sales offer, and it stays there until somebody buys it; the Grand Exchange is shared among millions of RuneScape players, and the transactions are handled automatically.
No, it's only in the main Runescape the Grand Exchange was made.
in either the grand exchange or you can make one
Grand Exchange
The first Runescape player to say g.e. for grand exchange was WEEDYMUN.
grand exchange
Grand exchange
Grand exchange
At the Grand Exchange.
Sell a rare item on the Grand Exchange.
nope the only way to get them is from the kebab seller or from the grand exchange.
the grand exchange on runescape
There is no special "Grand Exchange account". You have your RuneScape account (just log in normally); you go to the Grand Exchange and start buying and selling things. First, you have to talk briefly to the guy (NPC) with the megaphone, south of the Grand Exchange. This is once only.