By 1859 trade was the main area in which Māori interacted with Europeans. Trade was an area that Māori expected to control. From first contact, they had sold or exchanged fresh foodstuffs initially for high-value goods such as axes and later for money. George Grey was keen to encourage Māori trade and commerce and established new laws to empower them in 1846. Māori brought numerous cases under this legislation and won. This was their first and most successful legal experience. Māori had begun to include European concepts into their own cultural behaviour. In 1886 banknotes were printed (but not issued) by Te Peeke o Aotearoa, a bank established by Tāwhiao the Māori King. The text on these notes was Māori and there was also a picture of a flax bush. The bank's cheques had Māori figures and native birds and plants drawn on them.