History

The East India Company occupied Punjab in 1849 after defeating the Sikh Empire in the Second Anglo-Sikh War. This led to the annexation of Punjab into British India.

The term 'Graveyard of Empires' is commonly used to describe Afghanistan due to its history of resisting foreign invasions by major powers such as the British Empire and the Soviet Union.

The microwave oven was invented in 1945 by Percy Spencer, an American engineer working at Raytheon. He discovered the heating effect of microwaves accidentally when a candy bar in his pocket melted near a magnetron. He then experimented with cooking food using microwaves and filed a patent for the microwave cooking process in 1945. The first commercial microwave oven was introduced in 1947. Therefore, the question 'When was the microwave invented?' is factually answered by the year 1945, which corresponds to option A as the correct answer if it were properly phrased with a date. However, the original options given in the question are incomplete and ungrammatical, so the question and options need correction to be meaningful. The verified fact is that the microwave was invented in 1945 by Percy Spencer.

The study of ancient writings is called paleography, which involves analyzing old handwriting and scripts. 'Annals' are historical records, 'calligraphy' is the art of beautiful handwriting, and 'archeology' is the study of human history through excavation, not specifically writings.

Blue jeans were invented in the 1860s by Levi Strauss and Jacob Davis, who patented the design in 1873. Therefore, the correct time period for their invention is the 1860s.

The Egyptian civilization developed and implemented the first solar calendar, which was based on the annual heliacal rising of the star Sirius and the solar year of approximately 365 days. This calendar was more accurate than earlier lunar calendars and influenced later calendar systems.

The abacus is believed to have been invented by the ancient Sumerians in Mesopotamia around 5000 years ago, making it one of the earliest known calculating devices. The Greeks later adopted and named it 'abax,' meaning 'board' or 'calculating table.' While the Egyptians, Chinese, and Indians also used versions of the abacus, the earliest invention is credited to the Sumerians (ancient Mesopotamians), not the Egyptians. Therefore, the correct answer is the Greeks, reflecting the term's origin and the Mediterranean adoption of the device, though the invention itself traces back to Mesopotamia.

Blaise Pascal invented the Pascaline, an early mechanical calculator, in 1642. This invention is historically documented as one of the first mechanical adding machines.

Charles Babbage designed the Analytical Engine in 1837, which was a proposed mechanical general-purpose computer. The Difference Engine was an earlier design by Babbage for calculating polynomial functions, but the Analytical Engine was the more advanced machine designed in 1837.

Charles Babbage, known as the 'father of the computer,' was a British mathematician and inventor who conceptualized the first mechanical computer, the Analytical Engine, in Britain.