1st

2nd

First controlled nuclear chain reaction conducted by Enrico Fermi at the University of Chicago in 1942

4th

5th

Columbus discovers Hispaniola on El Espanola which is now Haiti  in 1492.

6th

7th    

In 0185 Emperor Lo-Yang of China sees supernova

8th

9th

10th

 In 1815 Ada Byron (

Lovelace)  of

London,

England, who is  considered the first computer programmer was born.

11th

12th

In 1957, the US announces the manufacture of Borazon which is harder than the diamond. 

13th

 14th   

15th

In 1612, Simon Marius is the first to observe the  Andromeda galaxy through a telescope.

16th

17th

In 1797, Joseph

Henry, scientist, inventor and pioneers of electromagnetism was born.

18th  

20th

In 1879, Thomas Edison privately demonstrated incandescent light at Menlo Park.  

21st

22nd  

In 1882, the first string of Christmas lights was created by Thomas Edison

23rd

In 1948, the first Us house to be completely heated by the sun was occupied in Dover, Maryland.

25th

26th

 27th 

Johann Kepler, astronomer was born in 1571 in Wurttember, Germany. 

28th

 29th

 In 1948, U.S. State Department announces work on placing objects into orbit around the Earth.       

30th

31st

In 1744, James Bradley announces discovery of Earth's motion of nutation (wobble.)