Knitting patterns were issued for people to make items for the Army and Navy to wear in winter, such as balaclavas and gloves. This had the effect of producing the required items, but also gave a positive sense of achievement towards the war effort, by being able to contribute in this way.
1950' and 60's high fashion
After the war years, knitting has a huge boost as greater colors and styles of yarn were introduced. Many thousands of patterns fed a hungry market for fashionable designs in bright colors.
The "twinset" was an extremely popular combination for the home knitter. It consisted of a short-sleeved top with a cardigan in the same color, to be worn together.
Girls were taught to knit in schools, as it was thought to be a useful skill, not just a hobby. Magazines such as "Pins and needles" in the UK, carried patterns of varying difficulty, with not just clothes, but items such as blankets, toys, bags, lace curtains and items that could be sold for profit.
1980's decline
The popularity of knitting showed a sharp decline in this period in the Western world. Sales of patterns and yarns slumped, as the craft was increasingly seen as old-fashioned and children were rarely taught to knit in school.
The increased availability and low cost of machine knitted items meant that consumers could have a beautiful looking sweater at the same cost of purchasing the wool and pattern themselves.
2000's revival
Following this decline of knitting, manufacturers and designers looked for new ways to stimulate interest and creativity within the craft.
Focus was given to making specialty yarns, which could produce beautiful and stunning results.
Companies like Vogue worked to make their patterns the height of fashion, and Rowan yarns popularized their patterns with high-quality magazines that bore no resemblance to the old-fashioned style once produced in bulk.
Celebrities such as Julia Roberts being seen knitting helped to popularise the revival of the craft.
Learn more about fabric.