Examlex
Identify the acid that is in car batteries.
Maya Ceremonial Calendars
Ancient timekeeping systems used by the Maya civilization for religious and ceremonial purposes, including the Tzolk'in and the Haab'.
Obsidian
A naturally occurring volcanic glass formed as an extrusive igneous rock, known for its sharp edges and used historically for making tools.
Tax Purposes
For tax purposes implies considerations or actions taken to comply with tax laws and regulations, often aimed at optimizing one’s tax liabilities.
Maya Record Keeping
The system used by the ancient Maya civilization for recording astronomical observations, historical events, and calendrical information using glyphs.
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