The financial world witnessed a historic moment as the BSE Sensex soared past the unprecedented 71,000 mark on a fateful Friday. In the realm of market indices, the Sensex stands as a vital barometer of Indias economic pulse, and its recent surge has sent ripples across the financial landscape.Why crossing 71,000 mark is a milestoneDecember 15 marked a historic milestone for the BSE Sensex as it crossed the monumental 71,000 mark for the first time. During the morning trade on Friday, the 30-share BSE Sensex exhibited a bullish trend, witnessing a surge of 569.88 points. This propelled it to its all-time high, settling at an impressive 71,483.75.The early trade session was marked by notable gains in key stocks. Infosys, Tech Mahindra, HCL Technologies, Tata Consultancy Services, Wipro, and JSW Steel emerged as the major gainers, contributing significantly to the Sensexs upward trajectory.Major GainersInfosys, Tech Mahindra, HCL Technologies, TCS, Wipro, JSW Steel, prominent players in the Indian corporate landscape, experienced substantial gains, underscoring the broad-based nature of the market surge. Simultaneously, the market capitalisation of BSE-listed firms reached a record high of ₹357 lakh crore. This surge in valuation attests to the confidence and optimism prevailing in the market.Sensex Figure on 15 Dec, 2023 04:00 PM: 71,483.75 (via @binnyva)— Sensex India (@bse_sensex) December 15, 2023Global Market TrendsBeyond Indias shores, Asian markets displayed positive trends. Seoul, Tokyo, Shanghai, and Hong Kong were trading with gains, reflecting a broader upswing in the region. The synchronicity of gains across major Asian markets signals a global sentiment favouring equities, creating an environment conducive to robust market performance.Also, the bullish spree was not confined to Asia, as the US markets closed higher on Thursday. This global positivity further fuelled the momentum of the Sensex.Previous MilestonesThis recent feat comes on the heels of the Sensex surging past the 70,000 level earlier in the week. The upward trajectory has been consistent, reflecting sustained investor confidence. On Monday, the BSE index had touched a high of 70,057 points but experienced a slight dip, closing at 69,988—still up by 0.15% from the previous close on Friday.One year Surge: 16.54%The Sensexs remarkable growth in the past one year has seen an impressive surge of 16.54%, around 10,145.94 points. at 57,527. The index has gained 12.78% in the last six months while it has surged 8.34% in the last one month of trade. In the past five days of trade, the index has added 2.18% to its value (as of 3:30PM, December 15, 2023)