Complex sentence: During this period of flourishing trade, the Igbo language become the trade and exchange language and ability to speak the Igbo language brought great trading advantages and patronage from the citizens and subject of the Ibom and Obong Okon Ita Kingdoms.
Split into simpler sentences: During this period of flourishing trade, the Igbo language became the trade and exchange language. Ability to speak the Igbo language brought great trading advantages and patronages from the citizens and subject of the Ibom and Obong Okon Ita Kingdoms.