| The following page is under construction.
Please do not edit or alter this article in any way while this template is active. All unauthorized edits may be reverted on the admin's discretion. Propose any changes to the talk page.
Kaplan was born Feiga Haimovna Roytblat (Фейга Хаимовна Ройтблат) on February 10, 1890. She became a political revolutionary at an early age and joined a radical group, the Social Revolutionaries.
In 1906, she was arrested for her role in a bomb plot and sent to Siberia, where she temporarily lost her vision. After the February Revolution brought down the monarchy, she was released.
Kaplan became disillusioned with Lenin as a result of the conflict between the Socialist Revolutionaries and the Bolshevik Party.