Scottish Episcopal Church. Most of this legislation was repealed by the end of the 18th century as the Jacobite threat subsided. There was soon a rehabilitation of Highland culture. Tartan was adopted for Highland regiments in the British Army, which poor Highlanders joined in large numbers in the era of the Revolutionary and Napoleonic Wars (1790–1815). Tartan had largely been abandoned by the ordinary people of the region, but in the 1820s, tartan and the kilt were adopted by members of the social elite, not just in Scotland, but across Europe. The international craze for tartan, and for idealising a romanticised Highlands, was set off by the Ossian cycle, and further popularised by the works of Walter Scott. His "staging" of the visit of King George IV to Scotland in 1822 and the king's wearing of tartan resulted in a massive upsurge in demand for kilts and tartans that could not be met by the Scottish woollen industry. Individual clan tartans were largely designated in this period and they became a major symbol of Scottish identity. This "Highlandism", by which all of Scotland was identified with the culture of the Highlands, was cemented by Queen Victoria's interest in the country, her adoption of Balmoral as a major royal retreat, and her interest in "tartenry". Economy Recurrent famine affected the Highlands for much of its history, with significant instances as late as 1817 in the Eastern Highlands and the early 1850s in the West. Over the 18th century, the region had developed a trade of black cattle into Lowland markets, and this was balanced by imports of meal into the area. There was a critical reliance on this trade to provide sufficient food, and it is seen as an essential prerequisite for the population growth that started in the 18th century. Most of the Highlands, particularly in the North and West was short of the arable land that was essential for the mixed, run rig based, communal farming that existed before agricultural improvement was introduced into the region. Between the 1760s and the 1830s there was a substantial trade in unlicensed whisky that had been distilled in the Highlands. Lowland distillers (who were not able to avoid the heavy taxation of this product) complained that Highland whisky made up more than half the market. The development of the cattle trade is taken as evidence that the pre-improvement Highlands was not an