In which decade was the first commercially successful mechanical cash register invented, transforming retail operations and preventing employee theft?

The history of retail has been shaped by transformative innovations that changed how merchants operate. One of the most significant inventions revolutionized transaction processing and loss prevention in the late 19th century, creating the foundation for modern point-of-sale systems. Test your knowledge of this pivotal retail technology that bridged traditional commerce with the modern retail experience.

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1850s - During the early Industrial Revolution expansion
1870s - When James Ritty created the 'Incorruptible Cashier' after noticing ship propeller counting technology
1890s - When department stores began expanding nationwide
1910s - Following the rise of chain stores and standardized retail practices