1. Early English dirt roads were created by digging two parallel ditches and throwing the removed earth onto the area between the ditches, thus elevating it. This method of construction created what was commonly known as:

2. In 1666, Maryland's first road law is enacted, and it requires:

3. It’s 1808 and private roads are big in Maryland. They're called “turnpikes” because:

4. Thomas Jefferson signed legislation in 1806 that commissions the nation’s first:

5. The National Road begins in Cumberland, Maryland and connects the East Coast with the Ohio River Valley. It is credited with:

6. Before it was called Route 40, it was The National Road. Before that it was called Braddock’s Road. Before that, it was called Nemacolin’s Path because that was:

7. The “tractor-trailers” that carried the biggest loads on Maryland's roads from 1750 to 1850 were known as:

8. By the early 20th century, the turnpike companies are mostly gone. They are the victims of competition from:

9. In 1908 the State Roads Commission is established for the purpose of:

10. The problem with building “macadamized” roads was:

11. The name “automobile” originated:

12. At the dawn of the 20th century, these two groups formed an odd alliance promoting better roads in Maryland.

13. Henry Ford did not invent the automobile. But he pioneered the:

14. What has always been the greatest natural challenge to Maryland’s roads?

15. Maryland’s first paved state road:

16. From 1908 until 1917, Maryland was the envy of other states and a national model for its:

17. World War I demonstrated that even good roads can go bad when:

18. In 1922, the first state tax on gasoline was enacted to raise revenue to build and maintain roads. What other significant event in Maryland road history occurred?

19. US 50 spans from Ocean City, Maryland to Sacramento, California. As one of the longest highways in the United States, it is known as:

20. Because water is such a pervasive element in Maryland's landscape, the state has been known as an innovator in:

21. Opened in 1940, the Susquehanna Bridge on US Route 40:

22. The National Interstate Highway System was championed by President Dwight D. Eisenhower:

23. When it opened in 1952, the Chesapeake Bay Bridge was commonly acknowledged as one of the great engineering and esthetic accomplishments of the 20th century. It also:

24. When President John F. Kennedy attended the ribbon cutting at the opening of the Northeast Expressway (I-95 in Maryland) on November 14, 1963, it was:

25. The Maryland Department of Transportation was established in 1970 to ensure: