To display numbers in scientific notation, use one of the exponent codes in the number format code â for example, Eâ, E+, eâ, or e+. If a number format code section contains a zero (0) or number sign (#) to the right of an exponent code, Excel displays the number in scientific notation and inserts an E or e.
Then, when Abraham Lincoln was in office he declared the last Thursday of November Thanksgiving Day in 1863. That is when it finally became a national holiday. Every president since Lincoln has also declared Thanksgiving a national holiday.
The holiday did not become an annual tradition at that point, but different states and individuals continued to celebrate it. Finally, with Lincoln's proclamation, the holiday became an annual tradition at the national level. The holiday has undergone only one major change since then: in 1939.