Which of these events occurred first? A. 55 BCE – Julius Caesar attacked Great Britain.
B. 509 BCE – Rome became a republic.
C. 776 BCE – The first Olympic Games were held in Greece.
D. 214 BCE – Work began on the Great Wall of China.

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?