Social Science — CBSE Class 10 board question

Throughout the nineteenth century, printing technology underwent significant improvements:

1. Metal press: By the late eighteenth century, the press was made of metal, replacing the older wooden press.
2. Power-driven cylindrical press: Richard M. Hoe of New York perfected this by the mid-nineteenth century, capable of printing 8,000 sheets per hour, especially useful for newspapers.
3. Offset press: Developed in the late nineteenth century, it could print up to six colours at a time.
4. Electric press: From the turn of the twentieth century, electrically operated presses further accelerated printing operations.

These innovations transformed the appearance of printed texts.

Source: Chapter 5, Section 5.2 – Further Innovations

---

• The question is directly from the textbook passage, so stick to the four key developments (metal press, cylindrical press, offset press, electric press) — examiners expect these specific examples.
• Mention the inventor (Hoe) and statistics (8,000 sheets/hour, six colours) for full marks — these details show precise textbook knowledge.
• End with the concluding line to show you understand the overall impact.