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The day the light bulb was invented – level 3
21-10-1879The first experiments with electric light were carried out in the...
The day penicillin was discovered – level 1
28-09-1928Alexander Fleming is from Scotland. He wants to help people. He...
The day penicillin was discovered – level 2
28-09-1928Alexander Fleming was a Scottish microbiologist. He wanted to discover a...
The day penicillin was discovered – level 3
28-09-1928Alexander Fleming was a Scottish microbiologist. He wanted to discover a...
The day the Trans-Siberian Railway construction began – level 3
31-05-1891On May 31, 1891, the construction of the Trans-Siberian Railway officially...
The day jeans were patented – level 3
20-05-1873Levi Strauss was a German immigrant who came to the United...
The day the first tourist went to space – level 3
28-04-2001People were always fascinated by the night sky full of stars....
The day the human DNA was mapped – level 3
14-04-2003In 1990, scientists started a project with the goal of mapping...
The day the American Civil War ended – level 3
09-04-1865In the middle of the 19th century, the situation on the...
The day the trial of the Rosenbergs started – level 1
06-03-1951In 1945, the United States use an atomic bomb. The atomic...
