Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Knowledge World History Industrial Revolution
Who of the following produced marketable iron in a coke-fired furnace in the year 1709 during the Industrial Revolution?
1
Abraham Darby
2
Henry Cort
3
John Wilkinson
4
More than one of the above
5
None of the above