Sterling and the euro benefited from improved sentiment in Asia on Wednesday (October 14th), with both currencies gaining in a session of broad appreciation.Ahead of the opening of markets in Europe, the GBP/USD currency rebounded strongly after finding support late on Tuesday at a four-month low, DailyFX reports.The euro also strengthened against the dollar as the global reserve currency suffered further weakness against the yen.Investors continued to move away from the dollar and into high-yielders this morning ahead of a clutch of US earnings reports, while perceived weakness in the greenback also caused a migration to commodities such as oil and gas as traders looked for hard assets.Yesterday, the Canadian dollar approached parity with its US counterpart as oil touched a seven-week high and gold broke new records. Speaking to Bloomberg, John Curran, a Toronto-based senior vice president at CanadianForex, said the loonie could "easily" hit parity by the end of the week.