First calculator was invented by:

A. Gottfried Leibnitz
B. Blaise Pascal 
C. William Oughtred
D. None of these

🧠 Explanation:

Blaise Pascal invented the first calculator, advancing computation. For history students, this highlights scientific history, making it a key topic for studying technology, mathematics, and innovation. Calculators simplified math. Understanding this reveals technological progress. It’s essential for analyzing history of science, mathematics, and technology. Studying Pascal’s calculator offers insights into how inventions shape math, crucial for history, mathematics, and science studies.