history position out of range

[Sergio Monteiro Basto]

Hi, 
How I delete history from entry 2 to entry 22

$ history -d 2:22
bash: history: 2:22: history position out of range


man history say: 

history -d offset

where is define, the sintax of the offset? 

Thanks in advance, 
-- 
Sérgio M. B.

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