"US History, Etc": HTML5 Crossword

Across

2. Number of original colonies (8)
3. Vice President under Donald Trump (5)
7. US president at the started of WWII (9)
10. First vice president of United States (5)
11. Largest river in the US (11)
12. Only US president from Pennsylvania (8)
13. Largest bay in the US (10)
16. In which continent was most WWI mostly fought? (6)
17. Largest state (by area) in the US (6)

Down

1. Most populated city in the US (7)
4. What conflict included the Battle of Gettysburg? (8)
5. Also known as the War of Independence (10)
6. County you are currently in (5)
8. Current governor of Pennsylvania (7)
9. Most populated state in the US (10)
14. Current vice president of the United States (6)
15. US war the occurred between WWII and Vietnam (6)