About Period Data CSV File Format

The CSV format is


The delimiter to separate the items can be chosen ',' and Tab and ';' on the screen.

1. Start_Date, End_Date

When the year, month and day are specified, Its date format is yyyy/MM/dd .
When the year, month are specified, the date format is yyyy/MM .
When only the year is specified, the date format is yyyy .

The character that separates the day, month, and year can be specified
one non-numerical character without '/'.

"1990.1.21" can be specified.

The non-numerical characters between the numerical character of the date and the delimiter are ignored as input data.

When "1990.1.21xxxx, " is specified, "xxxx" is ignored.

When the BC date is specified, please add B.C. or BC or - before the number of the year.

The date: "May 03, 41 BC" can be inputted at any "B.C.41/5/3" or "BC41/5/3" or "-41/5/3" .

If Start_Date > End_Date, it is not possible to input its line.

The Start_Date item is need to input. the empty End_Date item is OK.

2. Period_Name

If the item quoted with double quotes, its double quote cannot be inputed.

If Period_Name item is empty, it is not possible to input its line.

3. Event Data CSV Example

 "Peloponnesian War",BC431,BC404

 "Battle of Philippi",-42/10/3,

 World War I,1914/7/28,1918/11/11

 French Revolution,1789/7/14,1799/11/9