All three statements are correct.
| Date / Period | Source / Evidence | Region | Significance |
|---|
| AD 499 | Aryabhatiya of Aryabhata | India | Literary evidence of sophisticated mathematical ideas, though the question is about epigraphy. |
| AD 595–596 | Mankani / Sankheda copper plates | Gujarat, India | Earliest known Indian epigraphic evidence of place-value notation. |
| AD 628 | Brahmasphutasiddhanta of Brahmagupta | India | Important mathematical treatment of zero and arithmetic operations. |
| 7th century CE | Sanskrit inscriptions in South-East Asia | Cambodia / Sumatra region | Shows spread of Indian numerals and place-value notation outside India. |
| 9th century CE | Wider inscriptional use across India | India | Place-value notation became more general in inscriptions. |
| AD 876 | Gwalior inscription | Madhya Pradesh, India | Famous early inscriptional use of zero as a numeral. |
| Concept | Meaning | Example |
|---|
| Place-value system | Value of a digit depends on its position | In 222, each 2 has a different value: 200, 20, and 2 |
| Decimal system | Base-10 system | Uses powers of 10 |
| Zero as placeholder | Zero marks an empty place | 203 differs from 23 because of zero |
| Epigraphic evidence | Evidence from inscriptions | Copper plates, stone inscriptions |
| Literary evidence | Evidence from texts | Aryabhatiya, Brahmasphutasiddhanta |
| Point | Explanation |
|---|
| Mankani / Sankheda plates are crucial | They are linked with the earliest epigraphic use of the place-value system in India. |
| Epigraphic evidence differs from literary evidence | Inscriptions give dated, physical proof; texts show intellectual and theoretical development. |
| Zero had two roles | It functioned both as a placeholder and later as an independent number. |
| By the ninth century, place-value notation became common | Its inscriptional use spread widely across India. |
| South-East Asian evidence is important | It shows the spread of Indian numerals through Sanskritic cultural networks. |
| Indian numerals became globally transformative | They later spread through the Islamic world and Europe, becoming the basis of modern arithmetic. |
| Evidence / Source | Date / Period | Region | Importance |
|---|
| Aryabhatiya of Aryabhata | AD 499 | India | Shows advanced mathematical thinking, including place-value-related concepts in literary tradition |
| Mankani / Sankheda copper plates | AD 595–596 | Gujarat | Earliest known epigraphic evidence of the place-value system in India |
| Sanskrit inscriptions in South-East Asia | 7th century CE | South-East Asia | Show the spread of Indian numerals and place-value notation outside India |
| Brahmasphutasiddhanta of Brahmagupta | AD 628 | India | Important for mathematical treatment of zero and arithmetic operations |
| Wider inscriptional use across India | 9th century CE | India | Place-value notation became more common in Indian inscriptions |
| Gwalior inscription | AD 876 | Madhya Pradesh | Famous early inscriptional evidence for the use of zero as a numeral |
| Bakhshali Manuscript | Date debated | North-Western Indian region | Contains early mathematical notation, including use of a dot-like zero; dating remains debated |
| Transmission through Arab scholars | 8th–10th century CE onward | West Asia | Helped spread Indian numerals to the Islamic world and later Europe |
| Use in European mathematics | Medieval period onward | Europe | Indian numerals became the basis of modern Hindu-Arabic numerals |
| Mathematician / Scholar | Period | Work / Association | Contribution |
|---|
| Aryabhata | 5th–6th century CE | Aryabhatiya | Advanced astronomy and mathematics; place-value-related numerical ideas |
| Brahmagupta | 7th century CE | Brahmasphutasiddhanta | Rules for zero, negative numbers, arithmetic, algebra, astronomy |
| Bhaskara I | 7th century CE | Commentary on Aryabhata | Preserved and explained Aryabhata’s mathematical ideas |
| Mahavira | 9th century CE | Ganita-sara-sangraha | Important Jain mathematician; contributed to arithmetic and algebra |
| Bhaskara II | 12th century CE | Lilavati, Bijaganita | Major contributions to arithmetic, algebra, calculus-like ideas, astronomy |
| Madhava of Sangamagrama | 14th–15th century CE | Kerala School | Infinite series, trigonometry, early calculus-like developments |
| Nilakantha Somayaji | 15th–16th century CE | Tantrasangraha | Advanced astronomical models and mathematical astronomy |
| Concept | Meaning | Importance |
|---|
| Place value | Value of digit depends on its position | Makes compact writing of large numbers possible |
| Decimal system | Number system based on powers of 10 | Basis of modern arithmetic |
| Zero as placeholder | Zero marks an empty place | Distinguishes numbers like 205 and 25 |
| Zero as number | Zero used as an independent numerical value | Enables advanced arithmetic and algebra |
| Epigraphy | Study of inscriptions | Helps date historical use of numerals |
| Palaeography | Study of old scripts | Helps identify numeral forms in inscriptions and manuscripts |
| Copper plate inscriptions | Royal grants engraved on copper plates | Important evidence for administrative, land, and numeral history |
| Sanskrit inscriptions | Inscriptions written in Sanskrit | Spread Indian cultural and intellectual forms across South and South-East Asia |
| Stage | Region / Medium | Significance |
|---|
| Development in India | Texts, inscriptions, administration, astronomy | Formation of decimal place-value notation |
| Use in inscriptions | Copper plates and stone inscriptions | Shows practical administrative use |
| Spread to South-East Asia | Sanskrit inscriptions, trade, religion, polity | Reflects wider Indian cultural influence |
| Transmission to West Asia | Arab scholars and translations | Indian numerals entered the Islamic intellectual world |
| Adoption in Europe | Medieval mathematical texts | Eventually replaced Roman numerals in calculation |
| Modern global use | Science, commerce, technology, computing | Basis of modern numerical notation |