History
Go to...
Index
Translations
Pronunciation
Images
Computers
Geography
Languages
0 / 60 seg.
Name The Year: Discovery of element 93, neptunium, announced.
1
9
4
0
Clue
1957
1955
1940
1978
Text
Audio
Text & audio
Free text
Multiple option
Previous question
Start
Next question
Please enable JavaScript to continue using this application.