Matching (20) Match items in column A to column B

Column a Column b
1.
A.
Echo Sounding
2.
B.
1st map of Gulfstream
3.
C.
1st Accurate Map of World
4.
D.
1st develop art of navigation
5.
E.
aristotle
6.
F.
Pytheas
7.
G.
fathers of oceanography, wrote book
8.
H.
middle ages
9.
I.
diaz
10.
J.
cook
11.
K.
darwin
12.
L.
age of discovery
13.
M.
Beagle
14.
N.
No land in Arctic
15.
O.
Endeavor
16.
P.
Challenger
17.
Q.
Meteor
18.
R.
1st european in america
19.
S.
the rosses
20.
T.
Fram