Before computers, the "table of logarithms" was an important tool. In 1617, Henry Briggs printed the first logarithm table. This was soon after Napier's basic invention. Later, people made tables with better scope and precision. These tables listed the values of log("x") and "b" for any number "x" in a certain range, at a certain precision, for a certain base "b" (usually "b" = 10). For example, Briggs' first table contained the common logarithms of all integers in the range 1–1000, with a precision of 8 digits. 