Sean Lahman's Baseball Database
Version 2.2
January 15, 1999

Web site: http://www.baseball1.com
 E-Mail : sean@baseball1.com

This database can also be purchsed on CD-ROM.  
See http://baseball1.com/stats for more details.
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1.0  Introduction

This document describes the data that is missing from the database.  
Please bear this in mind when comparing career statistics from 
different eras.


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2.0  Biographical Information

For many players, particularly those from the 19th century, 
biographical data is missing.  This applies mostly to birthdates,
but for some players, we don't know whether they were left-handed
or righ-handed.  In some cases, even theire first name remains a 
mystery.  As research continues to solve more of these mysteries,
the database will be updated.

Because of the frequency of conflicts between sources, biographical 
information such as place of birth, date of death, height and weight
are currently excluded from this database.

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3.0  Pitching Statistics

The pitching statistics are completely intact from 1871 to the present.

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4.0  Batting Statistics

Gaps exist in the batting records.  Most frequently, this is because 
certain statistical categories were not considered "official statistics"
at the time and were never recorded.  The following data is missing from
this database for that reason:

SO   National League (1897-1909)
     American Association (1882-1888, 1890)
     Union Association (1884)
     American League (1901-1912)

CS   National League (1886-1914, 1916-1919, 1926-1950)
     Federal League (1914-1915)
     American Association (1886-1891)
     Player's League (1890)
     American League (1901-1913, 1917-1919)

RBI  American Association (1882-1897, 1890)
     Union Association (1884)

HPB  National League (1897-1908)
     American League (1901-1908)

SF   National League (1940-1953)
     American League (1940-1953)

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5.0  Fielding Statistics

Fielding data is not included for the National Assoication (1871-1875).
Other than that, there are no historical gaps in the fielding statistics.
To conserve space, fielding by pitchers is excluded, as well as fielding 
by players with less than 100 career games played.  

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