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The Book of Life is the "another Book" that has been opened. It is not the one that says "books were opened". What are these books? The Book of life
The pentagon opened in 1887.
because it works like a door hinge. When the door hinge is opened wider the angle is greater and when opened less the angle would be lesser.
Opened hexagonal prism.
canals and railroads...
Maybe
Many 19th Century inventions are still in use. One that is still in its original form is "canned foods (1810). Strangely enough, the can opener was not invented until 1858. Cans were opened previously with hammer and chisel.
"Backspace"
Chloe Kersten Yes, It was recently opened in the early 2009 Hope I helped Peace, Love, And Happiness
New inventions and products allowed people at home and work to be more productive. Also it opened up new jobs.
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Carter reported the tomb was completely intact at the time of his discovery
Who's the Boss.
The hidden bedroom door in the house can typically be found behind a bookshelf, a mirror, or a piece of furniture that can be moved or opened to reveal the entrance.
Granville T Woods' brother was Lyates, whom he opened a business with. Lyates also had a few inventions of his own.
The Hidden Lake is a room for both members and non-members. It was first opened in the Cave Expedition where you needed to have the Amethyst Pin pin to come in here. It re-opened on March 15, 2010, where you didn't need any items to get in.On the right side of the Hidden Lake, there is a door to the Underwater Room, which is open only to members. As of the Island Adventure Party 2010, there is a permanent entrance to the Hidden Lake from the Forest[1], making it not really "hidden" anymore.