dissapear

im doing an assignment and i cant really find a clear answer, can someone help me find it or give a link to a good website for the information?

Can you give the specific years like Before Common After and B.C

Does anyone know how to make it so that the windows sidebar gadgets are always there..? Mine dissapear whenever i shut the computer down...I have windows vista. Thank you!

Is is true that menstual flow will go away in water? help! we'll have an outing and we'll go swimming.but i have my menstrual flow until now.what will i do??is it true? btw.the outing is on this week! :DD. happy answers!