Measuring longitude required accurate timekeeping, which was not as precise in ancient times, leading to slight deviations for some cities from the Ujjayinī meridian. Class VI NCERT Social Science NCERT Social Science Textbook Exploring Society India and Beyond Session 2024-2025.
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India’s ancient prime meridian was called madhya rekhā or the “middle line,” which passed through the city of Ujjayinī (modern-day Ujjain). Class VI NCERT Social Science NCERT Social Science Textbook Exploring Society India and Beyond Session 2024-2025.
Letters and numbers help to precisely identify each square, making it easier for players to record and analyze moves during the game. Class VI Book Exploring Society India and Beyond Class 6 Social Science Chapter 1 Locating Places on the ...
It means the queen’s pawn moved from the square at d2 to d4, advancing two squares forward, a common opening move in chess. Class VI Book Exploring Society India and Beyond Chapter 1 Locating place on the Earth.
Chessboard squares are marked using letters (a to h) for the columns and numbers (1 to 8) for the rows, creating a coordinate system for easy recording. Class VI NCERT Social Science NCERT Social Science Textbook Exploring Society India and ...