How are centuries counted? • our calendar (the gregorian calendar) starts at a. d 1 (the approximate year of christ’s birth).
• example- 1st century = a. d 1 to a. d 100
• rule #1: centuries start with the first year and stop at the next 100-year mark.
• rule #2: take the numbers at the beginning and add one to find the number of the century.

Although a number of things brought about world war one there was one even that push to europe over the edge. what was that event?

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.

How did the us change it’s economy to provide supplies for the war effort?