The Continental Congress. 1  In the First Continental Congress, Patrick Henry, a delegate from Virginia, made the bold statement that I am not a Virginian, I am an American. 2  At the time of the congress, there were around 2.5 million people living in the United States.
Next Question. The main ingredient in eggshells is calcium carbonate (the same brittle white stuff that chalk, limestone, cave stalactites, sea shells, coral, and pearls are made of). The shell itself is about 95% CaCO 3 (which is also the main ingredient in sea shells).
Around the egg is a membrane, and evenly spaced on the membrane are points where columns of calcite (a form of calcium carbonate) form. These columns stack together side by side to form the shell. According to an incredibly interesting book called Made to Measure by Philip Ball: