Centuries: 3rd century BC - 2nd century BC - 1st century BC

Decades: 220s BC 210s BC 200s BC 190s BC 180s BC - 170s BC - 160s BC 150s BC140s BC 130s BC 120s BC

Years: 175 BC 174 BC 173 BC 172 BC 171 BC - 170 BC - 169 BC 168 BC 167 BC 166 BC 165 BC

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Events

• Antiochus IV Epiphanes invades Egypt and installs Ptolemy Physcon as king.
• Parchment is invented, in Pergamum.
• The earliest known paved streets appear in Rome.
• Crates of Mallus visits Rome.

Births

• Dionysios Thrax, linguist
• Lucius Accius, Roman tragic poet

Deaths

• Apollonius of Perga, Greek mathematician